Universal Compatibility: Compatible with all Philips Sonicare toothbrush heads Click-on handles models like HX6015,HX3641,C1, C2, C3, A3, W3, G2, G3, 4100, 5100, 6100,1100 2100, 3100 (Snap-On System). for DiamondClean, for ProtectiveClean, for FlexCare, for FlexCare+, for HealthyWhite, for HealthyWhite+, for EasyClean, for DailyClean, for ExpertClean, for PowerUp, for Essence+, for Simply Clean Quality and comfort: Equipped with improved DuPont bristles, bristles are firmly fixed, it not only cleans effectively between teeth, but also acts as a nemesis against Smoke stains and coffee stains. Experimental data show that their ability to remove plaque is ten times higher than conventional toothbrushes. The dense and soft bristles are suitable for people with sensitive gums to maintain gum health. Green indicator bristles: The two green bristles at the very top will turn pale in color, indicating that it's time for you to replace the brush head. Food grade product:The materials selected for this product meet international environmental standards, belong to green food grade products, and can be safely imported. Careful design: Research shows that the bristles of a toothbrush head with a certain curvature can make the gaps between teeth cleaner. After several experiments, we finally designed a curve that perfectly fits the curvature of adult teeth. Money-saving combinations: Each one is equipped with 10 brush heads, which can meet your needs for over 2 years of use and is very convenient. Individual sanitary cap: Each product is equipped with a food-grade protective cover, which is very beneficial for the protection of oral hygiene, whether for home use or traveling. Imbomsi Replacement Toothbrush Heads Compatible With Philips Sonicare