· GENTLE BUT EFFECTIVE CLEANING FOR SENSITIVE GUMS: electric toothbrush heads to remove up to 100% more plaque vs. a regular manual toothbrush. With extra soft bristles for a gentle, but effective clean.· ROUND CLEANS BETTER THAN A REGULAR MANUALTOOTHBRUSH: Round toothbrush head is inspired by dental professional tools for a tooth-by-tooth clean, with specially engineered bristles for optimal tooth coverage.· TRUSTED BY DENTISTS: Oral-B is the #1 Dentist Recommended Toothbrush Brand Worldwide.· COMPATIBILITY: Pack include 3 Genuine Oral-B Sensitive Gum Care replacement toothbrush heads, compatible with the Oral-B Pro, Smart, and Genius rechargeable toothbrush handles, and not compatible with Oral-B iO Series electric toothbrushes.