The Graco Affix Highback Booster Seat with Latch System helps safely transport your big kid from 40 to 100 lb* and up to 57" tall. It provides a secure connection to your vehicle seat with its one-hand front-adjust Latch system, making self-buckling easier for your independent child. While the purpose of the Latch** in the Affix Booster is to secure the booster to the vehicle seat while the booster is unoccupied and help facilitate independent buckling, you will secure your child in the booster seat with the vehicle lap/shoulder belt. The seat has an integrated cup holder and hideaway storage compartment to keep child's drinks and favorite things within arm's reach. This seat is Graco ProtectPlus Engineered to help protect your child in frontal, side, rear & rollover crashes. *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb **Since the Latch system only secures the booster seat to the vehicle in this application and is not used for installation, it may be used regardless of the weight of the child (up to the maximum weight recommendation of the seat). Booster car seat helps safely transport your big kid from 40-100 lb* and up to 57" tall *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb One-hand front-adjust Latch system secures booster to vehicle seat Secure connection keeps booster seat steady for easy self-buckling for your independent child Multi-layer headrest for your child's comfort Full coverage back support even as your child grows EPS, energy-absorbing foam for effective impact management Fully adjustable headrest keeps your growing child secure on all of your journeys together Cup holder allows your child to keep drinks or snacks close at hand Hideaway storage compartment to store your child?s favorite things The American Academy of Pediatrics (AAP) and National Highway Safety Administration (NHTSA) recommend that children should use the built-in harness system for as long as possible until they reach the maximum forward-facing weight or height for their car seat, and after reaching the maximum forward-facing weight or height, that children 4 feet 9 inches tall or under should ride in a belt-positioning booster seat Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps to protect your child in frontal, side, rear & rollover crashes; additional testing based on the New Car Assessment Program and for extreme car interior temperatures Side-impact tested for occupant retention with a standard vehicle harness system in highback booster mode; please consult your vehicle's owner's manual for more specific information on the performance of your vehicle's safety-belt system