These Philips Sonicare C3 Premium Plaque Defense Original Replacement Brush Heads are engineered to deliver a superior clean, targeting up to 100% more plaque removal compared to a manual toothbrush. Designed for optimal performance, these brush heads feature soft, contoured bristles that adapt to the unique shape of your teeth and gums. Ensuring comprehensive care, the C3 Premium Plaque Defense heads reach deep between teeth and along the gumline, promoting healthier gums in just two weeks. They are compatible with all Philips Sonicare click-on handle models for convenient use.