The Graco® SnugRide® SnugLock® Infant Car Seat Base ft. Load Leg Technology provides an extra layer of rear-facing safety. The Load Leg technology transfers energy to the vehicle floor to add stability and reduce rotation of the car seat in the event of an impact. SnugRide® performance helps to protect rear-facing infants from 4-35 lb and up to 32". SnugLock™ technology installs in less than one minute using the vehicle seat belt or LATCH. Graco’s exclusive InRight™ LATCH attachment provides an easy, one-second attachment with an audible click to help ensure secure installation. The 4-position adjustable base and an easy-to-read pendulum level indicator help with proper installation.