Keep your toothbrush performing like new with the Oral-B iO Series ultimate clean replacement brush heads. Designed exclusively for Oral-B iO electric toothbrushes, they feature advanced technology that removes up to 25% more plaque compared to standard brushing. Angled bristles provide a 360-degree deep clean, accessing even the hard-to-reach areas. | Oral-B iO Series Ultimate Clean Replacement Brush Heads - 4 Pack - Black