• Removes up to 100% more bacterial plaque compared to a manual toothbrush. • X-shaped filament design to clean hard-to-reach areas. • Head with filaments angled at 16 degrees that adapt to each tooth for a deep clean. • Usage indicator: filaments change from green to yellow to remind you when to replace. • Guaranteed fit with Oral-B rechargeable electric toothbrushes, except for iO and Pulsonic ranges. • Pack including 12 original replacement brush heads in black.