Compatibility: The replacement brush head is compatible with all Clari-sonic facial cleansing brush systems such as Mia, Mia 2, Mia 3 (Aria), Pro, Plus, Smart Profile, Alpha Fit, Plus, Sonic Radiance. Premium Material: The brush head is made of all-natural ingredients to minimize any adverse effects or possible damage to the skin. Ideal for cleaning traces of skin, large pores, or hard-to-reach areas of the face, such as around the nose. Function: Designed for ultra-gentle cleansing, keeping the skin precise, clean, and shiny. The skin cleansing effect is 6 times higher than the cleansing effect with hands alone. Tips: We recommend using the brush head every 3 months for best results. And we recommend this product for all large pores. The deep pore cleansing replacement brush head uses a dual-action graduated brush design to remove pore-clogging oil and dirt. High-quality product. It is not manufactured or sold by Clari-sonic, but it has the same performance as the original. If you are not completely satisfied, you can request a replacement or refund.