The Greco 4Ever Extend2Fit 4-in-1 Convertible Car Seat gives you 10 years with one car seat. It’s comfortable for your child and convenient for you as it transitions from rear-facing infant car seat (4-50 lb) to forward-facing 5-point harness toddler car seat (22-65 lb) to high-back belt-positioning booster (40-100 lb) to backless belt-positioning booster (40-120 lb). With the addition of the 3-position extension panel, 4Ever Extend2Fit provides 5″ of extra legroom allowing your child to ride safely rear-facing longer. For a proper fit, the Simply Safe Adjust Harness System and 10-position headrest lets you adjust the harness and headrest together, with no rethreading. The 6-position recline keeps your child comfortable, while the In Right LATCH system with one-second attachment makes installation easy. It’s the only seat that truly goes from baby to booster.