Install with confidence, every time. ClickTight® Installation is secure and struggle-free, whether using the vehicle seat belt or lower connectors. Level indicators and spring-assist recline make it quick and easy to find the correct angle. ReboundReduce™ Stability Bar helps minimize movement in a crash for peace of mind while you’re on the move. Alpine™ Base is compatible with Britax® Willow™ and Willow™ S infant car seats.