The Doona Extra LATCH Base is the essential second-vehicle solution for Doona families — designed exclusively for the Doona Infant Car Seat and engineered to ensure correct, consistent installation every single time. Designed, tested, and certified to US safety standards (FMVSS 213), it installs quickly with either the LATCH system or the vehicle’s seat belt, and the secure click-in, easy click-out mechanism makes moving between vehicles effortless.Engineered for Effortless, Accurate InstallationThe height adjustment mechanism and easy-to-read level indicators ensure proper seat angle and positioning every time, while the LATCH connector system facilitates quick installation and easy release. Integral belt locking clips enable snug, effortless seat belt installation as an alternative, and the Doona Installation Indicator confirms the seat is safely locked in position before every drive. Compatible with the Doona Car Seat for rear-facing use only, Group 0+.SpecificationsDimensions: 16” × 20.2” × 9” (40 × 51.5 × 23 cm) | Weight: 10.4 lbs (4.7 kg) | Infant weight: 4–35 lbs (1.8–15.8 kg) | Infant height: up to 32” (81.3 cm) | Rear-facing only, Group 0+.Posh Baby is a family-owned Portland boutique specializing in premium baby gear since 2006. Enjoy Tax-Free shopping in most states.