Safely return longer! The Graco Extend2Fit convertible car seat grows with your child, moving from a rear-facing harness (4-50 lbs) to a forward-facing harness (22-65 lbs). It has a 4-position extension plate that provides up to 5 inches of extra legroom in the back so your child can sit safely longer. With Extend2Fit, an adjustable extension plate and a rear weight limit of 50 lbs, the seat can grow with the child and thus allows for longer use towards the rear.