Brush away plaque gently yet effectively with the S2 Sensitive Philips Sonicare toothbrush heads. The brush head makes plaque removal seem effortless while staying gentle on teeth and gums. Enjoy an exceptional everyday clean! The S2 Sensitive electric toothbrush heads feature a unique design with long, thin, ultra-soft bristles that keep every brush stroke kind. With more than 3,000 densely packed bristles, these electric toothbrush replacement heads help you remove up to 1000% more plaque than a manual toothbrush, even in hard-to-reach areas. 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. They 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.