Get a thorough, professional clean with this two-pack of Oral-B iO Gentle Care replacement brush heads. The unique round head helps you get into hard-to-reach areas, while the optimized bristles deliver a powerful performance that's gentle on the gums and enamel. These Oral-B iO Gentle Care replacement brush heads are compatible with Oral-B iO toothbrush handles for seamless replacement. | Io Series Gentle Care Replacement Brush Head For Oral | B iO Series Electric Toothbrushes (2-Count | White | Best Buy