The Oral-B Precision Clean Rechargeable Electric Toothbrush Replacement Head White 4-count provides up to 400% more plaque removal along the gum line*. The round toothbrush head is inspired by dental professional tools for a tooth-by-tooth clean with specially engineered soft bristles. Indicator bristles signal time to replace brush head. Oral-B-the #1 toothbrush brand used by dentists worldwide.** These electric toothbrush replacement heads are compatible with the entire lineup of Oral-B rechargeable electric toothbrush handles excluding Oral-B iO and Sonic toothbrushes. Do not use on children under age 3. Replace toothbrush head every 3 months or sooner if brush head becomes worn. *Vs. a regular manual toothbrush. **Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly.