Graco Tranzitions 3-in-1 Harness Booster, Black

This lightweight car seat transitions seamlessly from harness booster (22 – 65 lb.) to high back booster (30 – 100 lb.) to backless booster (40 -100 lb.) and features the Simply Safe Adjust Harness System, which adjusts your harness and headrest to 8 height positions, with no time-consuming rethreading.