The Oral-B Pro 3DWhite brush head features a unique polishing cup that helps achieve whiter teeth from day one by removing surface stains. The original Oral-B brush heads have been designed with new X-shaped bristles that can reach areas that regular bristles cannot. The green indicator bristles gradually turn yellow depending on individual usage, signaling the optimal time to replace the brush head for 100% cleaning power. Guaranteed compatibility with all Oral-B rechargeable toothbrushes, except for Pulsonic and iO.