Graco All In One Car Seat, 4Ever 4-in-1 Car Seat4 in 1 car seat gives you 10 years of use, seamlessly transforms from rear facing harness 18 18 killogram (4 40 lb) to forward facing harness 10 30 killogram (22 65 lb) to highback booster 18 45 killogram (40 100 lb) to backless booster 18 54 killogram (40 120 lb) 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