-3-in-1 car seat grows with your child from rear-facing harness (5-40 lb) to forward-facing harness (22-65 lb) to highback booster (40-100 lb) -Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that help to protect your child in frontal, side, rear and rollover crashes -No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion -Choose the perfect headrest height from 10 positions to get the safest fit for your growing child -6-position recline keeps your child comfy and helps for a better installation