DESC: The Cosco Protek Booster Car Seat is a unique belt-positioning booster. It has a seven-position adjustable headrest and a cup holder. One of the great features of the Protek Booster is that it converts to convenient backless booster seat. This belt positioning booster is the only booster that a parent will ever need. It accommodates a child up to 100 lbs.! Not only does the Cosco Protek Booster Car Seat hold that weight, but it also can handle a child up to nearly five feet tall. That is some serious range! The Protek Booster is not LATCH required.