ADJUSTABLE BOOSTER – hifold booster seat is the world’s most adjustable booster, with unique “multi-fit” technology that can be adjusted to 243 individual settings. This car seat is designed for kids, 33-100 lbs., and 36 to 59 inches tall. PORTABLE BOOSTER FOR TRAVEL AND MORE –The world’s most portable booster. The “multi-fold” system quickly folds down to a compact and convenient size for storage, travel, carpooling and more. It is lightweight and includes convenient carry strap. KEEPS CHILD SECURE – hifold kids booster seat not only grows with your child, but ensures optimal seatbelt fit and comfort while they grow. It can be adjusted in 4 areas: the seat, body, head width and height. SAFETY TESTED – This portable car seat meets or exceeds NHTSA standard FMVSS 213 and is regulated for global use, so it can be taken and used everywhere in the world except Australia. CONVENIENT– This travel booster seat is easy to use and has won many awards, including the 2019 Creative Child Product of the Year Award. Use this car booster seat for older kids, grandparents cars or for fitting three children in a row.