Compatibility: Toothbrush head compatible with Oral B IO 2/3/4/5/6/7/8/9/10/Deep Clean Series Electric Toothbrush. Ensures perfect connection and performance with electric toothbrushes. Superior Plaque Removal: Featuring a rotating power head and long and short bristles, 1.5 times the bristle density for up to 99.9% removal. Hygienic Protection: Each replacement head comes individually sealed with a protective dust cover, maintaining sterility before use and enabling convenient storage. High-quality Bristles for Gum Care: The bristles are carefully crafted to be soft and comfortable, gently caring for your gums perfect for users with sensitive gums ensuring an enjoyable brushing experience.