Coloplast Sensura® Flex Skin Barrier, Non-Convex, Pre-Cut Stoma Opening 7/8″ (21 MM), Flange 1-3/8″ (35 MM)-Box Of 10 is an ostomy skin barrier designed to help create a secure seal and support confident wear with two-piece, convex barrier profile, pre-cut opening, and compatible with SenSura. Box of 10.