Fits most Oral-B power brushes. Perfectly angled bristles. Up to 100% more plaque removal (vs a regular manual toothbrush). No. 1 used by dentists worldwide. Does Not Fit: Pulsonic; 3D White Battery; Complete Battery; Pro-Health Battery. 1. Features precisely angled 16 degree bristles to perfectly adapt to each tooth and clean deep in between teeth. 2. Indicator bristles signal time to replace brush head. Dentists recommend changing your brush head every 3 months. 3. Interchangeable brush head. Floss Action. Sensitive Gum Care. 3D White. Deep Sweep. Precision Clean. Dual Clean. www.oralb.com. Customer Service Number: 1-800-56-OralB (1-800-566-7252). www.pg.com. Made in Germany.