The Pronto Booster has an innovative, sporty design that offers comfort and safety for your most precious cargo. - Slide-out cup-holder keeps beverages close at han. - Comfy armrests provide added comfort for child. - Adjustable height positions grows with your child. - Easily converts to a backless booster for children 40 - 100 lbs. - Removable, washable car seat pad for ease of cleaning. - Seat's high back supports your child's back and head for a more comfortable ride.