As one of Oral-B's premium replacement toothbrush heads, the Black CrossAction features precise angles that targets plaque to remove up to 100% more plaque vs. A regular manual toothbrush. The shape of Oral-B's CrossAction toothbrush head features specifically engineered bristles that are designed for optimal tooth coverage. Model number: CrossAction Black Replacement Electric Toothbrush Heads 4x. Pack of 4. Perfectly angled to reach deep between teeth Bristles clean tooth by tooth to help remove up to 100% plaque Indicator bristles fade as a sign to replace your toothbrush head for a better clean. Compatible with Oral-B Genius, Pro, Smart and Vitality Variants. EAN: 4210201216230.