-Superior performance than a manual toothbrush. -This Philips Sonicare toothbrush head features a contoured profile to naturally fit the shape of your teeth and to clean hard-to-reach areas. -Removes up to 2 times more plaque than a manual toothbrush. -Philips Sonicare's advanced sonic technology Philips Sonicare's advanced sonic technology pulses water between teeth, and its brush strokes break up plaque and sweep it away for an exceptional daily clean. **For further product information , please contact chat support**