Oral-B TriZone Replacement Electric Toothbrush Head - Pack of 4. Three bristle zones feature a power tip for back teeth, shorter bristles to clean surfaces and longer sweeping bristles that can reach 2 x deeper between teeth than a regular manual toothbrush
Oral-B Power CrossAction Replacement Electric Toothbrush Head - Pack of 4. The shape of Oral-B CrossAction toothbrush head features specifically engineered bristles that are designed for optimal tooth coverage