In addition to the Oral-B iO toothbrush head, it is also widely compatible with the entire range of Braun Oral-B Cross Action/ Floss Action/ Precision
Clean/ Sensitive Clean/ 3D White round replacement brush heads. The brush head hygiene cover/cap is also compatible with the Oral-B Pro 1000/
Smart 1500/ Geniu X/ Pro 100/ Pro 500/ 7500 electric toothbrush replacement heads and more.
NOTE: NOT compatible with Rectangle Toothbrush Head