Similar to the authentic Clarisonic Deep Cleansing Brush Head, this generic brush head works to provide a deep gentle cleanse that leaves your skin clean and healthy. • Compared to the original, this brush head is slightly softer but cleans just the same as a Clarisonic deep cleansing brush head. • This listing is for 4 new deep cleansing brush head and is compatible with Mia, Mia 2, and Aria. • If you have any more questions, feel free to message me!