Stay on top of your dental hygiene with this two-pack of Oral-B iO Ultimate Clean replacement brush heads. The round brush head envelopes each tooth for effective plaque removal, while the dual-length bristles reach deep in between teeth to remove food debris. These Oral-B iO Ultimate Clean replacement brush heads are compatible with Oral-B iO electric toothbrushes for seamless use. | Io Series Ultimate Clean Replacement Brush Head For Oral | B iO Series Electric Toothbrushes (2-Count | Black | Best Buy