-Ultra-sensitive cleaning. -Ultra-soft comfort. Superior cleaning for sensitive teeth and gums. -Removes more plaque than a manual toothbrush Densely-packed, high-quality bristles are clinically proven to remove more plaque than a manual toothbrush. -Innovative bristle design softly sweeps plaque away This Philips Sonicare sensitive brush head features ultra-soft bristles for gentle, effective cleaning. -And the contoured bristles fit the shape of your teeth, for an ultra-sensitive brushing experience. -Click-on design for simple brush head placement Your Sensitive brush head fits perfectly with any Philips Sonicare toothbrush handle. -Simply click on and off for easy replacement and cleaning. **For further product information , please contact chat support**