Doona Car Seat Isofix Base for Doona I is designed specifically for Doona I Infant Car Seat Stroller (click here). It ensures correct installation every time. Our secure click-in/ click-out system provides effortless mobility for parents on-the-go. The product meets the European i-Size safety regulation (R-129). The Doona i ISOFIX base is a safety product and should only be used in vehicles with ISOFIX anchors and in combination with the Doona i. *The Doona i ISOFIX Base is compatible with the Doona i Car Seat & Stroller and is intended for rear-facing use only. ISOFIX system for secure anchorage Compliant with EU regulations UNECE R-129 Height-adjustable support leg Simple one-click vehicle installation Color indicators for worry-free fitting every time Easy release for effortless removal Click here for product manual Product Specifications: Dimensions (Folded): 39.9 X 71.5 X 22.6 inchesWeight: 6.4kgGroup: 0+Recommended infant weight: Birth up to 13kg