100% Money Back Guarantee- We truly want you to be happy with your new replacement toothbrush heads and our professional customer service will do whatever it takes to ensure your satisfaction we are offering a 3-month guarantee, no questions asked. Effective Cleaning- Smile with Confidence! the powerful vibration of the brush head easily removes 7x more plaque, Curved shape design achieves a thorough cleaning at hard-to-reach areas, more effective plaque removal, and gingivitis prevention, making your teeth much healthier and whiter!. Gum Care and Comfortable - Feel the difference of US genuine premium DuPont bristles ( the same as name brand 100%). Our replacement heads have the Higher Ratio End-Rounded bristles, which care for teeth and gums, making you feel more comfortable brushing experience like never before. Real Quality - The toothbrush replacement head is made of US genuine DuPont filaments,whose quality is top and trustworthy.PP material has great flexibility, which is strong, wear-resistant, and not easy to break. Advanced planting technology keeps bristles from falling off. Full Compatibility- Senyum replacement heads are specially designed and perfectly compatible with philips sonicare toothbrush heads electric Toothbrush handles( Fit for E-Series, Essence, Xtreme, Elite, Advance, and CleanCare). Senyum Electric Toothbrush Heads for Philips Sonicare Replacement Heads E-Series,Compatible with Phillips Sonicare Replacement Brush Head Essence,Elite, for Sonic Care Toothbrush Heads Refill,4 Pack 4 Count (Pack of 1)