Coloplast Assura® Skin Barrier, Convex Light, Pre-Cut Stoma Opening 1-5/8″ (41 MM), Flange 2-3/8″ (60 MM)-Box Of 5 is an ostomy skin barrier designed to help create a secure seal and support confident wear with two-piece, light convex barrier profile, pre-cut opening, and compatible with Assura. Box of 5.