The Oral-B Pro 3D White electric toothbrush head features an exclusive polishing cup that whitens teeth starting from day 1 by removing surface stains. Oral-B genuine brush heads are designed with new X-shape bristles that clean in areas that round ones cannot reach. Its brush head usage indicator turns bristles from green to yellow showing you when to change for 100% cleaning efficacy. Guaranteed fit with Oral-B electric rechargeable toothbrushes except Pulsonic & iO toothbrushes.