Disney's Cars 2 Piston Cup Sit N Store Chair Seat lifts to reveal lots of storage space Sturdy, Washable Plastic construction Easy adult assembly no tools required Recommended weight limit 55 lbs. For Ages 2-6 Seat lifts to reveal lots of storage space For Ages 2-6 Sturdy, Washable Plastic construction Easy adult assembly no tools required Recommended weight limit 55 lbs.