Oral-B iO Gentle Cleaning Original Replacement Toothbrush Heads Suitable for Sensitive Gums - Black (Pack of 2)

High bristle density: Oral-B's gentle cleaning brush heads have up to 4000 soft bristles for gentle and perfect cleaning COLOUR CHANGING BRISTLES: The Oral-B brush heads feature colour changing bristles that signal when the brush head should be changed for maximum cleaning performance Replace every 3 months: a worn brush head makes cleaning difficult and leaves bacterial plaque behind. For superior cleaning, change brush head when bristles have faded to white EXCLUSIVE FOR Oral-B iO HANDPIECES: Superior cleaning power with the single brush head designed exclusively - and guaranteed to fit - for the Oral-B iO electric toothbrush Dentists/confidence in the interior Oral-B: Oral-B is the No. 1 toothbrush brand, which is most commonly recommended by dentists worldwide