Oral-B iO Gentle Cleansing Original Replacement Toothbrush Heads Suitable for Sensitive Gums - White (Pack of 4)

High bristle density: Oral-B's gentle cleaning brush heads have up to 4000 soft bristles for gentle and good 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 For Oral-B io handpieces: Get superior cleaning power with the single brush head designed to fit - and guaranteed to fit - your Oral-B iO electric toothbrush Dentist, inner confidence Oral-B: Oral-B is the No. 1 toothbrush brand, which is most commonly recommended by dentists worldwide