The Graco 4Ever DLX SnugLock Grow 4-in-1 Car Seat gives you 10 years of use with one car seat. The 4-in-1 car seat grows with your child as it transitions from a rear-facing harness (4-40 lb) to forward-facing harness (22-65 lb) to highback belt-positioning booster (40-100 lb) to backless booster (40-120 lb). Our Grow technology allows the backrest to widen as the headrest rises so your growing child has the best fit and comfort at every stage. The No-Rethread Simply Safe Adjust Harness System allows you to adjust the height of the headrest and harness in one motion for just the right fit. SnugLock technology allows for a hassle-free installation in less than one minute using either vehicle seat belt or LATCH. The car seat is Graco ProtectPlus Engineered to help protect in frontal, side, rear, and rollover crashes.