Enjoy a more captivating smile with REACH EasyFlex TotalPower Replacement Toothbrush Brush Heads. Compare to Oral-B Precision Clean Replacement Brush Heads. The multi-level bristle design of the EasyFlex TotalPower brush heads help provide a more effective cleaning experience, even in those hard to reach areas, removing more plaque than a manual toothbrush (based on in vitro laboratory testing). The Replace-Me bristles fade with use to remind you when to replace your brush head. These brush heads are compatible with most Oral-B electric toothbrushes (not compatible with iO Rechargeable, 3D White, Complete, Gum Care Battery). For optimum hygiene, replace your toothbrush heads every 3 months.