Compatible replacement brush heads for Philips Sonicare. I'm selling these because I've switched to a new electric toothbrush and no longer need them. There are also 2 extra compatible brushes. Feel free to take them. I will package them in an envelope with water damage protection. Perfect Compatibility: Senyum toothbrush replacement brush heads are specially designed to perfectly fit Philips Sonicare electric toothbrush handles. (Snap-on system) Extremely Comfortable and Excellent Durability: You'll feel the difference with genuine US premium DuPont bristles (same as the name brand). Our replacement brushes have a higher percentage of rounded bristles to care for your teeth and gums, providing a more comfortable brushing experience than ever before. Effective Teeth Cleaning and Whitening: Smile with confidence. With dense bristles and powerful vibrations, easily remove 7 times more plaque than before, and the curved long-tip design thoroughly cleans hard-to-reach areas, helping you achieve whiter teeth in a week. Stable Operation - The anti-slip system prevents the bristles from falling out and the brush head from slipping off. No hassle here, no matter how long you use the replacement brushes, you can enjoy a comfortable brushing time.