The Oral-B Pro Precision Clean toothbrush head cleans plaque, offering superior tooth-to-tooth cleaning compared to a regular manual toothbrush. Genuine Oral-B heads are designed with new, X-shaped bristles that reach areas that round ones cannot. The toothbrush head usage indicator changes color from green to yellow, informing you when to replace it for 100% cleaning effectiveness. Guaranteed fit with Oral-B electric rechargeable toothbrushes except for Pulsonic & iO.