I got these for my Clarasonic Mia. The price for this set was amazing so I had to try. It fits perfectly on my Mia! The only diff tho is it does feel a little lighter in pressure while in use prob bec the bristles are also a bit more softer. I do like the intensity I get from clsrasonic brush heads, but overall this one does the trick and for sure worth giving a try & cant beat the price!!