Level indicators and spring-assist recline make it quick and easy to find the correct angle. Compatible with all Britax Willow infant car seats. Install with confidence, every time- Clicktight installation is secure and struggle-free, whether using the vehicle seat belt or lower connectors. Quick-push lower connectors lock into place with a click and are easily released with the push of a button. Store within the base when not in use. Easy find & recline- level indicators and spring-assist recline make it easy to find the correct angle for your vehicle.