# AACE Booster Seat \| live price, prepared checkout ## Built for shopping agents: what RoboTrunk does for every product We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built. RoboTrunk is working through its catalogue, so a step may not be done for this one yet. Where a step is done per product, the line ends with what is done for this product. - **Deep research:** We read the maker's manual, independent reviews, video review transcripts and the store's own page, and publish each finding with its source and the date read. `check_product` returns them with a source for each. *This product:* 70 checked facts, research depth trimmed read, checked 2026-10-22T05:52:18.824Z, in the [evidence pack](/agent/evidence/modernnursery-com--nuna-aace-booster-seat). - **Receipts:** Every published fact has a receipt showing its source quote. `check_product` and `get_product` return the checked facts that have one. *This product:* each checked fact listed below has one; the source quotes are in the [evidence pack](/agent/evidence/modernnursery-com--nuna-aace-booster-seat). - **Safety:** `check_product` asks the product-safety regulators live (US CPSC, NHTSA and FDA, Health Canada, the UK's OPSS, Australia's ACCC) whether a recall names a product, listed here or not, and flags a match with its notice; a recall never blocks the buyer. *This product:* this page holds no recall result for it yet; `check_product` asks the regulators now. - **Recall watch:** `watch_recalls` tells the buyer if a product bought here is recalled later. - **Second-hand listings:** `check_listing` runs the same recall check on a second-hand listing someone found, and adds what the listing leaves out and the price new. - **The real price:** The full price to the buyer's country, with shipping and tax, each part quoted from the store's policy or, where a part is not settled, what the total depends on: `check_product` and `search_catalog` take the buyer's country and postcode. *This product:* this store's price was read from its catalogue at 2026-10-21T19:31:31.510Z. - **A checkout that finishes:** RoboTrunk lists only stores whose agent checkout it has verified. `create_checkout` prepares the order at the store; `complete_checkout` returns a link to the store's own checkout. The checkout can be finished in either of two ways: the person taps the link in their own browser, or their agent opens it and completes the checkout. RoboTrunk checks the store's total against a budget ceiling before it issues the link. Payment always happens on the store's own page, and RoboTrunk never holds the money. No store pays for placement; RoboTrunk may earn a commission from some stores via their affiliate programs. - **Markdown copy:** Every page has a Markdown copy: [this page's copy](https://robotrunk.com/products/ucp/modernnursery-com/4798910103652.md). - **Photos and ratings:** Search results carry the product photo and, where the store's own page publishes one, its rating (`search_catalog`). - **Fit answers:** `check_fit` answers whether a listing fits a car, pram or bottle, with the exact quote from the store's page, or says it is not known. - **Back-in-stock watches:** `watch_back_in_stock` starts a watch on a listing the store shows as sold out; `get_back_in_stock_watch` shows when it is back in stock. - **Maker's manual:** `ask_product_manual` answers from the maker's manual with the exact passage and page, or says the manual does not cover it. - **Tools and guide:** Every tool and its description is at https://robotrunk.com/mcp; the guide is at [/agents\.md](/agents.md). - **Research from other stores:** Coming soon: reading other stores' listings of the same product as research sources. Sold and shipped by modernnursery\.com, modernnursery.com; payment happens on the store's own checkout. Brand: Nuna ## Variants - Caviar: USD 300.00; in stock. Variant id: `gid://shopify/ProductVariant/32513355907172` - Seller: modernnursery\.com. Price: USD 300\.00. Stock: in stock. Variant: Caviar, variant id `gid://shopify/ProductVariant/32513355907172`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/nuna-aace-booster-seat). [Comparison page](/compare/want/car-seats-with-a-headrest-that-adjusts-as-a-child-grows). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4798910103652&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F32513355907172). - Granite: USD 300.00; in stock. Variant id: `gid://shopify/ProductVariant/32513355841636` - Seller: modernnursery\.com. Price: USD 300\.00. Stock: in stock. Variant: Granite, variant id `gid://shopify/ProductVariant/32513355841636`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/nuna-aace-booster-seat). [Comparison page](/compare/want/car-seats-with-a-headrest-that-adjusts-as-a-child-grows). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4798910103652&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F32513355841636). - Lake: USD 300.00; in stock. Variant id: `gid://shopify/ProductVariant/32513355874404` - Seller: modernnursery\.com. Price: USD 300\.00. Stock: in stock. Variant: Lake, variant id `gid://shopify/ProductVariant/32513355874404`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/nuna-aace-booster-seat). [Comparison page](/compare/want/car-seats-with-a-headrest-that-adjusts-as-a-child-grows). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4798910103652&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F32513355874404). - Cedar: USD 300.00; in stock. Variant id: `gid://shopify/ProductVariant/54257148625262` - Seller: modernnursery\.com. Price: USD 300\.00. Stock: in stock. Variant: Cedar, variant id `gid://shopify/ProductVariant/54257148625262`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/nuna-aace-booster-seat). [Comparison page](/compare/want/car-seats-with-a-headrest-that-adjusts-as-a-child-grows). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F4798910103652&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F54257148625262). ## Checked facts Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 70 checked facts, checked 2026-10-22T05:52:18.824Z. Research depth: trimmed read. Deep read: the store's own data and 19 outside pages \(the store's own product page; maker page; manual; review; blog; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\); official safety test results \(CREP, the Child Restraint Evaluation Program\); official safety test results \(NHTSA's Car Seat Ease of Use Ratings\); official safety test results \(ADAC's child seat test\); video review \(derived summary of its captions\)\), each read in full by RoboTrunk and trimmed to its main content, then written up and checked\. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read\. Recall status was checked directly with CPSC \(United States\), Health Canada: The CPSC recall search for Nuna returned no recall records for the AACE, and the Health Canada recall data returned only two Nuna\-related records — an illegal edible cannabis alert and an archived Nuna Zaaz high chair recall — neither of which concerns this booster seat\. Official safety test results were looked up directly with CREP, the Child Restraint Evaluation Program, NHTSA's Car Seat Ease of Use Ratings, ADAC's child seat test: CREP, the Child Restraint Evaluation Program \(Australia and New Zealand\): Rated the Nuna Aace under the Australian model code CS\-41\-001AU as a booster under the 2021\-onward protocol, added February 2024: crash protection 3\.8 of 5 stars \(66\.7/100\) and ease of use 3\.2 of 5 stars \(64\.6/100\)\. CREP records a 6\.4 kg seat, 690–840 mm high, 440 mm deep and 500 mm wide\. Ratings under this protocol are not comparable with older ones\. NHTSA's Car Seat Ease of Use Ratings \(United States\): Rated the booster mode of model CS07007GRN \(made 2021\-12\-07, 15\.8 lb in this mode\): overall 4 of 5 stars, securing the child 2 of 5, evaluation of labels 4 of 5, vehicle installation features 5 of 5, instructions 4 of 5\. NHTSA notes the seat was not fully assembled out of the box, has no labels showing how to convert from high\-back to no\-back, the lap\-only belt warning is not illustrated, and the manual storage is hard to find once installed\. This is an ease\-of\-use rating, not a crash\-test result\. ADAC's child seat test \(Germany, the UK and Europe\): ADAC tested the Nuna AACE in 2018 and graded it 1,9 overall \(good, lower is better\) in the child age class; a separate Nuna Aace LX was tested in 2023, also at 1,9, and that entry is a different variant\. Grades from different test years are not directly comparable\. Not read, because they are member\-only or refused RoboTrunk: Consumer Reports car seat ratings, Which? child car seat tests, JPMA certified products\. - lab scores: In Consumer Reports' lab tests the seat scored 5/5 for booster fit with the back, 4/5 for booster fit without the back and 4/5 for ease of use, an overall 75 and first among 17 highback\-to\-backless boosters\.. Source: (review), read 2026-10-22T05:22:24.011Z. - armrests: The fixed armrests are called controversial because they can make climbing in and out harder for some children; the sliding leg extension is singled out as unusual for the price class\.. Source: (review), read 2026-10-22T05:22:28.927Z. - installation: The rigid LATCH is described as foolproof and extremely secure, keeping the seat stable as children climb in and works in vehicles with non\-removable headrests; belt fit and comfort were rated highly\.. Source: (review), read 2026-10-22T05:22:40.152Z. - owner sentiment: An aggregated parent score of 88/100 from a single review, praising long service life and premium fit and finish, with price and limited value for occasional\-use families as the trade\-offs\.. Source: (review), read 2026-10-22T05:22:44.419Z. - safety test: CREP rated the Nuna Aace CS\-41\-001AU as a booster under the 2021\-onward protocol, added February 2024: crash protection 3\.8 of 5 stars \(66\.7/100\) and ease of use 3\.2 of 5 stars \(64\.6/100\); CREP records a 6\.4 kg seat weight and 690–840 mm height, 440 mm depth, 500 mm width\. Read from https://www\.childcarseats\.com\.au/api/v1/child\_car\_seats/filter\_data/retrieve?\_format=json. Source: (guide), read 2026-10-22T05:32:37.363Z. - safety test: NHTSA's ease\-of\-use rating for the booster mode of model CS07007GRN \(made 2021\-12\-07\): overall 4 of 5 stars, securing the child 2 of 5, labels 4 of 5, vehicle installation features 5 of 5, instructions 4 of 5; NHTSA notes the seat was not fully assembled out of the box, has no labels showing how to convert to backless mode, and the lap\-only belt warning is not illustrated\. Read from https://api\.nhtsa\.gov/childSeats?dataSet=ratings. Source: (guide), read 2026-10-22T05:32:37.715Z. - safety test: ADAC tested the Nuna AACE in 2018 and gave an overall grade of 1,9 \(good\) in the child age class; the seat page is https://www\.adac\.de/rund\-ums\-fahrzeug/ausstattung\-technik\-zubehoer/kindersitze/kindersitztest/marken/nuna/nuna\-aace\-id\-566/\. Lower grades are better on ADAC's scale\.. Source: (guide), read 2026-10-22T05:32:38.088Z. - installation: The video shows the rigid lower\-anchor connectors turning green once properly clicked in, and separate guide clips being used when the vehicle's anchors are buried in the seat crease\.. Source: (review), read 2026-10-22T05:34:31.078Z. - dimensions: High\-back booster measures 14\.6 in long x 21\.5 in wide x 26 in high at the lowest headrest position, and 15 in x 22\.5 in x 33 in at the highest\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - adjustability: The headrest has nine height positions adjusted with one hand\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - child limits: The manual requires children to be at least 43 in \(110 cm\) tall in both modes\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - child limits: A different edition of the same manual states a lower minimum height of 38 in for both modes, which conflicts with the other manual\.. Source: (manual), read 2026-10-22T05:21:55.170Z. - fabric feel: The cover feels more like a plush canvas than the usual slick car\-seat fabric, and the reviewer found it very nice to the touch\.. Source: (review), read 2026-10-22T05:21:58.209Z. - crash test performance: In the outlet's own sled testing the seat produced the lowest head\-injury and chest sensor readings in its booster group, which the testers read as a possible extra margin of protection over average seats; the pop\-out side pods were noted but not judged in a real crash\.. Source: (review), read 2026-10-22T05:22:01.072Z. - vehicle compatibility: The rigid LATCH system lets the seat be used in vehicles with fixed, protruding head restraints, which very few high\-back boosters allow\.. Source: (blog, thecarmom\.com), read 2026-10-22T05:22:11.875Z. - adjustment: All three growth adjustments are easy to make one\-handed, the back lifts away in one movement for backless mode, and the recline works even with the lower anchors attached, which is rare\.. Source: (blog, Car Safety & Car Seats Guides, published 2025-07-16), read 2026-10-22T05:22:15.054Z. - width and buckling: The Australian\-market seat reviewed is 50–56 cm wide and is likely to sit on the seat belt buckle in many cars, making buckling hard and tilting the child on contoured seats; it is not suitable for three across\.. Source: (review), read 2026-10-22T05:22:21.541Z. - pros and cons: Praise for excellent labels and instructions and very good high\-back belt fit, with LATCH securing the seat; criticism for being heavy, bulky and expensive\.. Source: (review), read 2026-10-22T05:22:24.011Z. - drawbacks: Called expensive and heavy, with seat weight given as around 15 lb, but worth it for the long usable range\.. Source: (review), read 2026-10-22T05:22:40.152Z. - recline: The recline can be adjusted forward and back while the seat stays anchored in the car, without removing it\.. Source: (review), read 2026-10-22T05:34:31.078Z. - weight: The booster weighs 15\.6 lb in high\-back form\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - adjustability: The shoulder wings widen automatically as the headrest is raised, giving growing children more shoulder room\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - warnings: The cup holder must never hold hot liquids\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - padding: Well cushioned through the hips, torso and shoulders, and padding stays behind the child even with the headrest raised for taller kids\.. Source: (review), read 2026-10-22T05:21:58.209Z. - installation: The rigid LATCH connectors press straight onto the vehicle anchors easily, keep the seat from sliding around when empty, and the supplied LATCH guides are usually unnecessary\.. Source: (review), read 2026-10-22T05:22:01.072Z. - shoulder belt guide: The belt guide is small and vehicle\-dependent: in one vehicle's third row the belt twisted in the guide, and in others it caught and did not retract smoothly, so belt movement should be checked after fitting\.. Source: (blog, thecarmom\.com), read 2026-10-22T05:22:11.875Z. - size and weight: The comfort features make it bulky and heavy at about 15\.6 lb, one of the heavier boosters reviewed\.. Source: (blog, Car Safety & Car Seats Guides, published 2025-07-16), read 2026-10-22T05:22:15.054Z. - safety features: That review faults the seat for having no anti\-submarining clip to stop a child sliding under the lap belt, and rated it 2 out of 5 and not recommended\.. Source: (review), read 2026-10-22T05:22:21.541Z. - side impact pods: The side pods pull out for roughly an extra 2 in of side coverage on each side\.. Source: (review), read 2026-10-22T05:34:31.078Z. - child limits: High\-back mode: 40–110 lb, 43–60 in, 4 years and older\. Backless belt\-positioning mode: 50–120 lb, 43–60 in, 5 years and older\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - adjustability: The seat pan slides between three depths for thigh support\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - compatibility: Lower anchor connectors only work with vehicle anchors at the standard 11 in spacing\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - width: At full headrest extension the seat is about 21 in wide, which can make three car seats across the back seat a struggle\.. Source: (review), read 2026-10-22T05:21:58.209Z. - ease of use: The headrest lever is easy to squeeze and the headrest moves smoothly, but the headrest has to be raised out of the way to thread the shoulder belt for shorter children\.. Source: (review), read 2026-10-22T05:22:01.072Z. - size: It is one of the larger high\-back boosters, so it is a poor choice for three across or for an adult sitting beside it, and it is bulky to move between vehicles\.. Source: (blog, thecarmom\.com), read 2026-10-22T05:22:11.875Z. - care: Fabrics are machine washable and the cup holder is dishwasher safe; breathable fabric and shell vents are said to keep the seat cool on long trips\.. Source: (blog, Car Safety & Car Seats Guides, published 2025-07-16), read 2026-10-22T05:22:15.054Z. - adjustment: Raising the headrest is easy at first but widening the wings becomes noticeably harder as the headrest goes higher\.. Source: (review), read 2026-10-22T05:22:21.541Z. - conversion and cup holder: The high back lifts off to make the backless booster, and the washable cup holder clips to either side and still works in backless mode; the seat ships in two pieces for a smaller box\.. Source: (review), read 2026-10-22T05:34:31.078Z. - recline: With the lower anchor connectors attached the high\-back seat offers an 8\-position recline\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - modes: It converts from a high\-back booster to a no\-back booster\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - recline: Recline is not available once the seat is used as a backless booster\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - shoulder belt guide: The deep side wings make the shoulder belt guide awkward to reach; raising the headrest above the wings, threading the belt, then lowering it again solved the problem, and the belt did not snag as the headrest moved\.. Source: (review), read 2026-10-22T05:21:58.209Z. - buckling: Children can buckle themselves, though it is not as easy as some rivals: the seat sometimes has to be shifted sideways for a clear shot at the buckle, and the large armrests get in the way\.. Source: (review), read 2026-10-22T05:22:01.072Z. - materials: Fabric and foam are flame\-retardant free and machine washable, the seat is GREENGUARD Gold certified, and the packaging is unusually premium\.. Source: (blog, thecarmom\.com), read 2026-10-22T05:22:11.875Z. - ventilation: The reviewer judged the ventilated shell largely ineffective, saying the holes produce almost no airflow from under or behind the seat\.. Source: (review), read 2026-10-22T05:22:21.541Z. - armrests: The armrests sit low and are padded, making it easy for a child to climb in compared with seats with tall armrests\.. Source: (review), read 2026-10-22T05:34:31.078Z. - certifications: The seat is GREENGUARD Gold certified and made without added fire\-retardant chemicals\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - what is included: A starter kit and a dishwasher\-safe cup holder are included\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - lifespan: The booster must not be used past 10 years from manufacture\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - leg support: The sliding seat pan gives generous thigh support for a wide range of children, but extra fabric bunches at the back of the seat when the pan is pushed back in\.. Source: (review), read 2026-10-22T05:21:58.209Z. - cup holder: The cup holder is narrow and did not take the testers' child's water bottle; extra cup holders can be bought from Nuna\.. Source: (review), read 2026-10-22T05:22:01.072Z. - adjustability: The nine\-position headrest, eight recline positions, expanding side wings and sliding seat depth let it fit both small and large children and encourage a proper, upright seated posture\.. Source: (blog, thecarmom\.com), read 2026-10-22T05:22:11.875Z. - ventilation: Ventilation panels in the shell and a breathable, washable knit fabric cover are intended to keep the child cool\.. Source: (guide), read 2026-10-22T05:32:31.348Z. - side impact protection: Energy\-absorbing foam and pop\-out side impact pods provide the side\-impact protection\.. Source: (guide), read 2026-10-22T05:21:52.668Z. - crash replacement: A seat involved in a moderate or severe crash must never be used again; NHTSA's minor\-crash criteria are listed in the manual\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - assembly: The seat arrives in two pieces and needs a firm push until it clicks together — more force than the reviewer expected\.. Source: (review), read 2026-10-22T05:21:58.209Z. - weight and size: It weighed 15\.9 lb in their tests, at the heavier end, and is 16 in wide at the seat, fairly narrow for the group; converting to backless makes it much lighter and smaller for travel or carpooling\.. Source: (review), read 2026-10-22T05:22:01.072Z. - care: Shell and parts are wiped with mild detergent, water and a soft cloth and air dried; the covers follow the care label attached to them\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - side impact pods: The pop\-out pods should only be extended on the side next to a vehicle door, not when the seat is in a centre position; the reviewer said the manual was unclear and Nuna confirmed this\.. Source: (review), read 2026-10-22T05:21:58.209Z. - padding and fabric: Two soft fabrics are used, with a slightly silkier side panel, but seat\-area padding is thinner than on some rivals while the headrest is thickly padded and good for napping; stitching and foam looked well made\.. Source: (review), read 2026-10-22T05:22:01.072Z. - care: The seat bottom cover comes off after undoing eight snaps; the back and head support covers use snaps and elastic bands\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - included accessories: The cup holder, lower anchor guides and shoulder belt adjuster come together in a small starter kit box rather than being attached to the seat\.. Source: (review), read 2026-10-22T05:21:58.209Z. - carrying: A lip moulded into the back of the headrest makes the seat easier to carry between cars\.. Source: (review), read 2026-10-22T05:22:01.072Z. - side impact protection: The pop\-out side impact pods should be deployed whenever the seat is installed in a vehicle\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - fit to child: Belt fit was solid in both high\-back and backless modes for a 48 in child and a 55 in child, though the taller child was past the high\-back height limit; the seat was a quick favourite with both\.. Source: (review), read 2026-10-22T05:21:58.209Z. - what is included: A shoulder belt positioning clip is supplied and clips onto a bar on either side of the seat bottom to keep the belt in the blue zone\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - manual and lifespan: The manual is printed on thick, easy\-to\-handle paper and is well written, and the 10\-year expiry is labelled on the underside of the backless portion\.. Source: (review), read 2026-10-22T05:21:58.209Z. - vehicle fit: The front of the booster must not hang over the front edge of the vehicle seat\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - recline: The seat must never be used reclined beyond recline position 2\.. Source: (manual), read 2026-10-22T05:21:54.111Z. - recall registration: Nuna asks owners to register the seat so they can be notified if it is recalled\.. Source: (manual), read 2026-10-22T05:21:54.111Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/modernnursery-com--nuna-aace-booster-seat) ## Questions we researched but could not confirm Every fact above is cited. To find them we read the store listing, the maker's page, the manual, owner reviews, blogs, video reviews, the recall records of CPSC \(United States\) and Health Canada and the safety test results of CREP, the Child Restraint Evaluation Program, NHTSA's Car Seat Ease of Use Ratings and ADAC's child seat test and searched for regulator recall notices and owner forums. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess. - How many years does the limited warranty run and what does it cover? - Does the knit fabric pill or stain with everyday use? - Will the seat fit on a narrow middle seat next to two other child seats? - Does the shoulder belt guide work well in a third\-row seat with a low belt anchor? - Can the cup holder be bought separately as a spare part? - Does the seat fit under a typical vehicle head restraint without removal? - Is a travel bag available for carrying the seat or its backrest? - How does the seat hold up in a side\-impact crash with the pods retracted? - Do the different colourways use the same fabric or differ in feel? - What does Nuna say about using the seat with an inflatable or lap\-only belt? - How much does the backless portion weigh on its own? To buy this through RoboTrunk, pass merchant `modernnursery-com`, product_id `gid://shopify/Product/4798910103652` and one variant_id from the list above. Product image of AACE Booster Seat, supplied by modernnursery\.com: This product on modernnursery.com: Retrieved 2026-10-21T19:31:31.510Z from This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)