The Valco Baby Ultra Duo S2 Car Seat Adapters transform your Ultra Duo S2 stroller into a complete travel system, letting you seamlessly transition your infant car seat from car to stroller in seconds. Perfect for parents who want flexibility and convenience at every stage of their journey.

• Maxi-Cosi/Nuna/Cybex Adapter – Compatible with most US models of these brands.
• Twin Adapter Kit – Includes one Maxi-Cosi/Nuna/Cybex adapter and one Universal adapter, allowing for dual car seat use. (For twin setups, one of each adapter type is needed, as two of the same won't work.)