Coloplast Assura® Skin Barrier, Convex Light, Cut-To-Fit Stoma Opening 5/8″-1-3/4″ (15 MM-43 MM), Flange 2-3/8″ is an ostomy skin barrier designed to help create a secure seal and support confident wear with two-piece, light convex barrier profile, cut-to-fit opening, and compatible with Assura. Box of 5.