It feels good when it CLICKS! The Graco TrioGrow SnugLock 3-in-1 Car Seat installs in less than one minute using vehicle seat belt or UAS. With SnugLock Technology, you can feel confident you've got a secure install as your child grows. Keep your little one safe from baby to big kid: this 3-in-1 car seat converts from a rear-facing harness 2.2-16 kg (5-35 lb), to a forward-facing harness 10-30 kg (22-65 lb), and to a big kid highback booster 18-45 kg (40-100 lb). Using the Simply Safe Adjust harness system, you can adjust the height of the harness and headrest to 10 positions in one motion, allowing you to easily get the safest fit for your child as he or she grows. Conveniently store the harness away in booster mode with the integrated harness storage compartment. The 6-position recline and removable infant head and body inserts help your little one feel cradled and comfortable on your many journeys together. Your child will also enjoy the 2 cup holders to keep drinks and snacks close at hand. The Graco TrioGrow SnugLock is Graco ProtectPlus Engineered, which helps to protect your child in frontal, side, rear, and rollover crashes.