The Evenflo Big Kid Amp Booster Car Seat gets your child excited about sitting in a booster seat! With 6 height positions, the back adjusts as your child grows, keeping the side and head support in the proper position. It also transitions into a no-back booster. Your child will love the comfortable padding around the head and body. Elastic cup holders are perfect for a juice box or a quick snack.2 Seats In 1 Removable back for easy transition to a no back booster.