Extra soft bristles for sensitive gums provide a superior & gentle cleanvs. a regular manual toothbrush Round brush head is inspired by dental professional tools for a tooth-by-tooth clean, with specially engineered bristles for optimal tooth coverage Compatible with the entire lineup of Oral-B rechargeable handles, except for Oral-B sonic toothbrushes The Oral B compatible brush heads contain multi-level bristles to aid thorough cleaning teeth and message on gums gently, highly recommended by dentists worldwide