Designed for Oral-B iO electric toothbrushes. Compatible with ALL Oral-B iO including Series 2, 3, 4, 5, 6, 7, 8 ,9 and 10. Deep clean action with gentle effectiveness.
Only Compatible with Oral-B iO Electric Toothbrush Handles. (5) Black Brush Head. Bristles Fade to White Indicating Brush Head Change. (4) White Head.
