Oral B® CrossAction Power Whitening Toothbrush it contains an action cup brush head and specially desgined bristles that clean and whiten for a brilliant smile. Whitens teeth by removing surface stains. Action Cup Brush Head - Hugs each tooth and helps hold toothpaste for effective stains removal. Rubberized Bristles helps to gently polish away stains. Structured Bristles is designed to break up plaque and reach deep between teeth. Replaceable Brush Head.