5 cross action electric rechargeable refill replacement brush headsPrecisely angled bristles are set at 16 degrees to reach deep between teeth and remove up to 100% more plaque vs a regular manual toothbrushTooth-by-tooth cleaning for superior plaque removal vs a regular manual toothbrushVarious bristle levels cover more surface to reach and remove more plaque than a regular manual toothbrushCompatible with the entire lineup of oral-b rechargeable and battery handles (excluding oral-b pulsonic)