WIDE COMPATIBILITY - Perfectly compatible with Philips Sonicare ProtectiveClean 4100 5100 6100 1100, DiamondClean, ExpertClean, EasyClean, DailyClean, 2 Series Plaque Control Snap-on electric toothbrush handles. EFFECTIVE CLEANING - Made of premium bristle with rounded tips. Wavy bristle shape with medium hardness will bring a better dental cleaning experience. Blue reminder bristles to remind effective cleaning is always online. TRAVEL-FRIENDLY - Lanveda replacement brush head comes with toothbrush covers that give the bristles their own space to keep clean and easy to carry. In daily use, the cap keeps out dust so your toothbrush head is always clean and hygienic. 10 VALUE PACK - Electric toothbrush replacement heads boast distinctive gray markers in varying shapes. Makes it a breeze for you and your family to distinguish between each toothbrush head. EASY SNAP ON DESIGN - Unique bamboo design on the bottom increases friction and makes it easy to remove the brush head from the electric toothbrush. NOTE: The snap is strong the first time you use it and becomes easier after a few uses. Replacement Brush Heads Compatible with Philip Sonicare Electric Toothbrush