FULL COMPATIBILITY - The Boclengo electric replacement heads for Philips Sonicare are specially designed and compatible with Philips Sonicare toothbrush heads C2, C1, C3, A3, W3, 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 ). 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. . EFFECTIVE CLEANING AND WHITEN TEETH - Boclengo electric toothbrush heads for Philips Sonicare with densely packed bristles easily remove 10X plaque, curved long tips design achieves a thorough cleaning at hard-to-reach areas and prevents gingivitis, powerful vibration pulses of water break up more stubborn plaque, make your teeth healthier and whiter! 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 replacement toothbrush 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 Boclengo replacement brush 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. Boclengo Replacement Toothbrush Heads for Philips Sonicare Replacement Heads C1,C2,4100,G2 Replacement Brush Head for Phillips Sonicare Electric Toothbrushs C1,C2,4100,G2