The Graco Nautilus SnugLock Grow 3-in-1 Forward-Facing Harness Booster Car Seat grows with your child from a forward-facing harness (22-65 lb) to highback booster (40-100 lb) to a backless booster (40-120 lb). Now with Grow technology, this harness booster features a backrest that widens 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 the headrest and harness to adjust together for your convenience, and the 11-position headrest and 4-position recline mean added comfort for your child's best ride. This seat is also equipped with SnugLock technology for a hassle-free installation in less than one minute using either vehicle seat belt or LATCH. Dual cup holders keep snacks and drinks within reach. This car seat is Graco ProtectPlus Engineered to help protect your child in frontal, rear and rollover crashes.