Helps you brush as you would with a manual toothbrush for easy handling Oral-B #1 brand used by dentists worldwide Promotes cleaner teeth and healthier gums versus a regular manual toothbrush Features triple zone cleaning with three bristle zones to deep clean in hard-to-reach areas Indicator bristles fade as a sign to replace your toothbrush head for a better clean Compatible with the entire lineup of Oral-B electric toothbrushes, except for Oral-B sonic toothbrushes | Oral-B Trizone Tooth Brush Heads 2 Pack | Wowcher