Oral-B Sensitive Gum Care Electric Toothbrush Replacement Brush Heads Refill, 3 Count, Only $11.26 , free shipping after using SSExtra soft bristles for sensitive gums provide a superior* & gentle clean*vs. a regular manual toothbrushRound brush head is inspired by dental professional tools for a tooth-by-tooth clean, with specially engineered bristles for optimal tooth coverage#1 Dentist Used Toothbrush Brand, Worldwide - Oral-B (data on file)Compatible with the entire lineup of Oral-B rechargeable handles, except for Oral-B sonic toothbrushes