Coloplast Sensura® Mio Click Skin Barrier, Concave, Cut-To-Fit Stoma Opening 1-9/16″-2-1/8″ (40 MM-55 MM), Flange is an ostomy skin barrier designed to help create a secure seal and support confident wear with two-piece, concave barrier profile, cut-to-fit opening, and compatible with SenSura Mio. Box of 5.