Reach a more radiant smile with these clinically tested teeth-whitening Philips Sonicare toothbrush heads. Notice results after just one week while experiencing an exceptional everyday clean. The diamond-shaped bristle area is designed to increase surface contact and clean away stains more effectively. The results speak for themselves with up to 100% more stain removal in less than two days. The W DiamondClean electric toothbrush heads are also very efficient when it comes to plaque removal: they use densely-packed bristles to remove up to 700% more plaque than a manual toothbrush. Trust proven Sonicare technology: the Philips Sonicare toothbrushes clean gently yet effectively and care for your teeth and gums with up to 62,000 bristle movements. Sonicare Fluid Action supports cleaning by driving fluid deep between teeth and along the gumline. All Philips Sonicare sonic toothbrush heads are meticulously designed and clinically tested to meet the highest standard in quality, safety and performance. These electric toothbrush replacement heads are compatible with all Philips Sonicare click-on electric toothbrushes. Dental professionals recommend changing your brush head every 3 months, that\'s why Philips Sonicare toothbrushes have BrushSync technology. It tracks how often and how hard you brush, and the light on the handle turns on when it\'s time to replace your brush head. You will also know when to replace it when blue bristles turn white. vs. a manual toothbrush in white mode vs. a manual toothbrush allocated to plastic of brush head on mass balance basis where facilities exist not compatible with Philips One and e-series handles in hard-to-reach areas the feature is available for BrushSync compatible handles