# Classic Base \| 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:* 21 checked facts, research depth trimmed read, checked 2026-10-21T06:34:51.708Z, in the [evidence pack](/agent/evidence/modernnursery-com--babyark-classic-base). - **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--babyark-classic-base). - **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/7872889290852.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: Babyark ## Variants - Charcoal Grey: USD 290.00; in stock. Variant id: `gid://shopify/ProductVariant/44347596111972` - Seller: modernnursery\.com. Price: USD 290\.00. Stock: in stock. Variant: Charcoal Grey, variant id `gid://shopify/ProductVariant/44347596111972`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/babyark-classic-base). [Comparison page](/compare/want/car-seats-with-a-load-leg-or-energy-absorbing-base). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7872889290852&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F44347596111972). ## 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. 21 checked facts, checked 2026-10-21T06:34:51.708Z. Research depth: trimmed read. Deep read: the store's own data and 6 outside pages \(the store's own product page; maker page; manual; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\)\), 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: CPSC recall search for Babyark returned no records, and Health Canada recall records mentioning Babyark were none\. - compatibility: The store says the base lets a Classic Convertible Car Seat transfer from one car to another\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - purpose: An extra base lets a family keep a base in another car and move only the car seat\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - safety features: The store lists a support leg, an anti\-rebound bar and rigid LATCH on the base\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - transfer between cars: The base is meant to make moving a car seat between vehicles easier\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - fire retardants: The store labels the product fire\-retardant free\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - energy absorption: The base uses SafeCoil impact\-activated shock\-absorbing technology\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - phthalates: The store labels the product phthalate free\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - safety features: The base has rigid LATCH, a support leg and an anti\-rebound bar\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - PFAS: The store labels the product PFAS\-free\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - anti\-rebound bar: The anti\-rebound bar is intended to prevent rebound rotation\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - phthalates: The store's structured data also lists no known harmful phthalates\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - support leg: The front support leg is intended to prevent forward rotation\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - SKU: The store SKU for the Charcoal Grey Classic Base is BA\-G011032010\-01\-00\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - rear\-facing weight limit: The maker lists a rear\-facing weight range of 4 to 50 lb \(1\.8 to 22\.7 kg\) for the compatible seat system\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - GTIN: The store lists GTIN 850053103254 for the Charcoal Grey Classic Base\.. Source: (guide), read 2026-10-21T06:32:20.582Z. - forward\-facing weight limit: The maker lists a forward\-facing weight range of 26\.5 to 65 lb \(12 to 29\.5 kg\) for the compatible seat system\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - age range: The maker says the Classic system is for newborns to 6\-year\-olds\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - installation: The maker says installation is the same for front\-facing and rear\-facing positions\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - expiry: The base has no expiry date\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - what is included: The box includes the Classic base and lower anchor funnels or guides\.. Source: (guide), read 2026-10-21T06:32:27.852Z. - warranty: The maker lists a free warranty, but this page does not give its length or terms\.. Source: (guide), read 2026-10-21T06:32:27.852Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/modernnursery-com--babyark-classic-base) ## 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 and the recall records of CPSC \(United States\) and Health Canada and searched for regulator recall notices, owner reviews, blogs, owner forums and video reviews. 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. - What are the Classic Base's dimensions? - How much does the Classic Base weigh? - Does the Classic Base fit every Babyark Classic seat generation? - Does the Classic Base work with the Smart Convertible Car Seat? - What is the warranty period and what does it cover? - What are the cleaning instructions for the Classic Base? - Does the Classic Base meet FMVSS 213 or another car\-seat safety standard? - What tools are needed to install the Classic Base? - Can the Classic Base be installed with a seat belt instead of rigid LATCH? - Does the support leg adjust for sloped vehicle floors? - Is there a height limit for the child using this base? - How thick are the base's contact surfaces and padding? - Does the base fit vehicles with deep or contoured rear seats? - How do owners rate the Classic Base specifically after long\-term use? - What warnings does Babyark give for installing the Classic Base? To buy this through RoboTrunk, pass merchant `modernnursery-com`, product_id `gid://shopify/Product/7872889290852` and one variant_id from the list above. Product image of Classic Base, 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)