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. Designed for Oral-B iO series electric toothbrushes For use with your existing model. Ultimate Clean refill Helps remove plaque, leaving teeth feeling clean and bright. Round brush head with gentle micro-vibrations Offers a surprisingly enjoyable experience, helping keep your teeth and gums healthy for life. Dual-length bristles Surround and reach deep in between teeth and have higher density for an ultimate clean. Keep your teeth healthy Replace heads every three months. Pack of two Includes two replacement toothbrush heads.