The Advocate ClickTight Convertible Car Seat features the revolutionary ClickTight Installation System, giving you peace of mind that the seat is installed properly. It s as simple as buckling a seatbelt. Just open the front of the seat, feed the seatbelt through the indicated path, buckle, click the seat shut, and secure the tether. A deep energy-absorbing shell, quick-adjust head protection and exterior side cushions form three layers of side protection - creating the ultimate safety for your child. SafeCell Impact Protection features a steel frame, energy-absorbing base and patented V-shaped tether with staged-release stitches that reduce forward movement during a crash. The Britax-patented Click & Safe Snug Harness Indicator lets you know that your child s harness is within range of proper tightness with a click. Recommendation : The American Academy of Pediatrics recommends that all infants and toddlers should ride in a Rear-Facing Car Seat until they are 2 years of age or until they reach the highest weight