Multi-level bristles for up to 5x better cleaning at the gum line (vs. a regular manual toothbrush based on in vitro laboratory testing). Compare to Oral-B Precision Clean (Oral-B, Vitality, Precision Clean, CrossAction Power and Oral-B Complete are registered trademarks of The Procter & Gamble Business Services Canada Company or one of its affiliates. 3D White is a registered trademark of The Procter & Gamble Company or one of its affiliates. Pulsonic is a registered trademark of Braun GmbH). Fits most Oral-B electric toothbrushes. Also fits CareOne Rechargeable and Flex & Clean Total Power toothbrushes. See back for compatibility. Multi-level bristle design for more effective cleaning than a manual toothbrush. Light-blue Replace-Me' Bristles fade with use to remind user to replace brush head. Identifier color rings. Also compatible with most Oral-13 electric toothbrushes. Does not fit Vitality Sonic. Oral-B Sonic Complete, Pulsonic, CrossAction Power battery toothbrush, Oral-B Complete battery toothbrush, and 3D White battery toothbrush (Oral-B, Vitality, Precision Clean, CrossAction Power and Oral-B Complete are registered trademarks of The Procter & Gamble Business Services Canada Company or one of its affiliates. 3D White is a registered trademark of The Procter & Gamble Company or one of its affiliates. Pulsonic is a registered trademark of Braun GmbH). Quality guaranteed or your money back. For product questions or concerns, contact us at 1-877-849-9949. Made in USA.