- Pack of 2 Oral-B iO Interdental Clean replacement brush heads, designed for interdental cleaning - Round shape with high-density bristles to reach difficult areas - Especially suitable for users with orthodontics, implants, or misaligned teeth - Angled outer bristles and higher central tuft for precise cleaning - Bristles fray and change color to indicate when to replace the brush head - Exclusively compatible with Oral-B iO electric toothbrush handles - Recommended by dentists to maintain optimal oral hygiene and prevent plaque - Easy installation: direct snap-on to the toothbrush handle - It is recommended to replace every 3 months to maintain cleaning effectiveness