4 PACK Clarisonic Sonic Foundation Makeup Brush Compatible with Mia 1, Mia 2, Mia Fit, Alpha Fit, Smart Profile Uplift and Alpha Fit About this item Clarisonic devices are customizable with a brush head designed to meet every skin need Each brush head is made with patented rounded bristles to be gentle on skin Gently cleanses away surface debris to reveal radiant skin Compatible with all Clarisonic facial cleansing brushes Replace brush heads every 3 months for optimal performance SPECS Brand Clarisonic Recommended Uses For Product Skin Care Color Sonic Foundation Makeup Brush, 1 Pack Skin Type All Item Form ELLIPTICAL Age Range Adult Ferrule Material Aluminum Skin Tone All Item dimensions L x W x H 2.2 x 2.2 x 1.25 inches