The Evenflo Big Kid Booster Seat easily converts from a high-back booster to a no-back booster. With new legislation requiring children to remain in booster car seats until they reach 8 years old or 80lbs, it is important to have a safe, reliable and comfortable booster car seat. Pivoting armrests on the Big Kid Booster make it easy to board, and buckle positioning is a lot easier too. This Evenflo seat will truly grow with your child. Parents will love its versatility!! * Adjustable booster seat * Easily converts to a no-back booster * Designed for children measuring up to 57 inches tall a * Five-position height adjustment * One-hand full body adjustment * Pivoting armrests improve entry * Lap belt return * Two retractable, extra-large cup holders * Removable, washable Comfort Touch padding * Includes manufacturer's warranty * Weight: 9.5 pounds * Interior seat dimensions: 13.5 x 10.5 x 26 inches * Dimensions: 17 x 19.50 x 28 inches