Oral-B Cross Action Power Replacement Brush Heads Soft
Crisscross bristles. Refills fit CrossAction Power handles only. Dentists and hygienists recommended replacing your brush head every 3 months.
How to Replace Your Brush Head: 1. To Remove - Press One-Touch release button and slide brush head off toothbrush. 2. To Replace - Lay new replacement brush head flat on neck of toothbrush, then slide head toward handle until One-Touch lock button clicks into place. Do not insert brush head at an angle.