FULL COMPATIBILITY - The Boclengo electric toothbrush heads for Philips Sonicare are specially designed and compatible with Philips Sonicare Replacement heads C2, C1, C3, A3, W, G2, G3, 4100, 5100, 6100,1100 2100,3100 electric handles(All Snap-On System). for DiamondClean, for 2 Series Plaque Control, 3 Series Gum Health, for Sonicare Kids, ProtectiveClean, FlexCare, FlexCare+, HealthyWhite, HealthyWhite+, EasyClean, DailyClean, ExpertClean, PowerUp, Essence+, for Simply Clean ). DEEP CLEANING POWER — The toothbrush replacement heads for Philips Sonicare feature densely packed bristles that remove up to 10x more plaque than a manual toothbrush. Effortlessly target hard-to-reach areas with Long-Curved tips, promoting healthier gums and visibly brighter teeth. CARE FOR TEETH & GUM HEALTH - More gentle touch and comfortable brushing! Feel the difference between U.S. genuine premium DuPont bristles (the bristles are the same as the name brand). Boclengo toothbrush heads for Phillips Sonic Care feature the Higher Ratio DuPont End-Rounded bristles which achieves an optimal balance of cleaning and gentleness, preventing irritation and protecting teeth and enamel. WORK AS GOOD AS THE ORIGINAL- Perfect operation every time! the unique internal anti-slip system ensures that Boclengo toothbrush head is quite stable, and durable PP material is not easy to break, no matter how long you use the toothbrush replacement heads for Philips Sonicare , there are no troubles here, enjoy every pleasant brushing time. 100% Satisfaction Guarantee- We truly want you to be happy with new electric toothbrush heads for phillips sonicare and our professional customer service will do whatever it takes to ensure your satisfaction we are offering a 365-day guarantee, no questions asked. Replacement Toothbrush Heads for Philips Sonicare Replacement Heads C2,C1,G2, 4100,W,C3, Electric Replacement Brush Head Compatible with Phillips Sonicare Toothbrush C2,C1,G2, 4100,W,for Philips Sonic Care Brush,6 Pack