# Stroller Frames That Convert to Carry a Second Child Which stroller frames can be converted to carry a second child? Bugaboo Donkey 3: The chassis houses levers and buttons that let the stroller change from single to two\-child use and back\. Bugaboo states the chassis can support two growing children whether used as a single or double/twin stroller\. Bugaboo Donkey 6 Sibling Seat: It transforms a Bugaboo Donkey 6 Mono into a stroller for two children of different ages\. It converts the Donkey 6 into a side\-by\-side double stroller\. Bugaboo Donkey 5 Duo Extension Set: The set converts a Bugaboo Donkey 5 Mono into a side\-by\-side double stroller\. ### 1. [Bugaboo Donkey 3](/products/ucp/megababiesusa-com/6867274530969) (sold by megababiesusa\.com) Bugaboo states the chassis can support two growing children whether used as a single or double/twin stroller\. - Conversion: The chassis houses levers and buttons that let the stroller change from single to two\-child use and back\. (guide) - Weight support: Bugaboo states the chassis can support two growing children whether used as a single or double/twin stroller\. (guide) - Minimum age: - ### 2. [Bugaboo Donkey 6 Sibling Seat](/products/ucp/megababiesusa-com/9134751973630) (sold by megababiesusa\.com) It transforms a Bugaboo Donkey 6 Mono into a stroller for two children of different ages\. - Conversion: It converts the Donkey 6 into a side\-by\-side double stroller\. (listing) - Weight support: It supports the same child weight and height limits as the main seat\. (guide) - Minimum age: It is designed for a second child from 6 months\. (listing) ### 3. [Bugaboo Donkey 5 Duo Extension Set](/products/ucp/megababiesusa-com/7544455954686) (sold by megababiesusa\.com) The set converts a Bugaboo Donkey 5 Mono into a side\-by\-side double stroller\. - Conversion: The set converts a Bugaboo Donkey 5 Mono into a side\-by\-side double stroller\. (guide) - Weight support: - - Minimum age: - ## Also cited in the text - Bugaboo Donkey 6 Sibling Seat, What it is: It transforms a Bugaboo Donkey 6 Mono into a stroller for two children of different ages\. (listing) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-24T08:08:29.276Z. 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) - [Every tool, in your browser through WebMCP](/agent) - [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)