The Floss Action toothbrush head provides a floss-like clean (but does not replace flossing) Gives a whole-mouth cleaning, including in interdental spaces Features MicroPulse Bristles to clean deep between teeth for outstanding plaque removal Compatible with the entire lineup of Oral-B rechargeable handles, except for Oral-B sonic toothbrushes #1 brand used by dentists worldwide – Oral-B (data on file)