Oral-B iO Series Replacement Brush Heads – Pack of 2 (Black)Oral B iO Series Replacement Brush Heads Pack of 2 (Black) Enhance your oral hygiene routine with the Oral B iO Series Replacement Brush Heads. This pack of 2 stylish black brush heads is designed specifically for Oral B iO Series handles, ensuring optimal performance. The round brush head features micro vibrating bristles that provide a deep yet gentle clean, effectively removing plaque and promoting gum health. For best results, replace your brush