Full Compatibility- Compatible with phillips sonicare replacement heads electric handles( Fit for E-Series Essence Xtreme Elite Advance and CleanCare) So Comfortable and Durable- Our replacement brush heads have the Higher Ratio End-Rounded bristles which care for teeth and gums making you feel more comfortable brushing experience like never before. Effective Cleaning - Smile with Confidence! Curved shape design achieves a thorough cleaning at hard-to-reach areas making your teeth much whiter! Perfect Stable Operation- Superb PP material ensures that the brush head Never break and the bristles Never fall off No matter how long you use the replacement toothbrush heads there is no any troubles here Enjoy every pleasant brushingtime.