?Easy Installation and Great Value?Just pull out your old electric replacement brush heads and snap the new one on, easily and smoothly. You will get 10 packs premium sonic brush heads, can use a long time for whole family. Each of the toothbrush heads comes with a hygienic cap to protect it from dust and bacteria. ?Advanced & Indicator Bristles? Futulkyus toothbrush heads made with end-rounded premium Dupont Tynex Nylon Bristles and equipped with blue indicating bristles. Blue bristles for toothbrush replacement heads fade in color let you know when to change a toothbrush replacement, usually 3 months. ?8X Effective Clean and Improve Oral Gum Health?The contoured sonic toothbrush bristles for replacement brush heads fit your tooth shape, can reach difficult-to-clean areas, and work better in the oral cavity. The densely-packed bristles for toothbrush heads with powerful vibration can remove up to 8X more plaques than a manual toothbrush. ?Why Choose Us?Futulkyus electric toothbrush heads are high-quality test approved, all materials are BPA-free and non-toxic, meeting the highest healthy standards. Avoid noise, badly fit, bristles fall and easily break problems, giving you a great brush experience. ?Widely Compatibility?Futulkyus electric toothbrush replacement heads are compatible with Philips Sonicare DiamondClean, DailyClean, ProtectiveClean, EasyClean, PowerUp, FlexCare, HealthyWhite, 2 Series Plaque Control, 3 Series Gum Health,etc, most snap-on toothbrush handles.