Backless booster car seat for kids 40–100 lbs. and 43.4" to 57" Slim booster seat fits 3 across the back seat of most vehicles Lightweight booster seat is easy to move from car to car and makes a perfect travel booster seat Wide base and covered higher arm rests make it easy for kids to buckle themselves Stable platform designed to let kids get in and out of the seat without it tipping Machine-washable, dryer-safe carseat seat pad