Convatec, Ostomy Barrier Sur-Fit Natura , Stomahesive Trim to Fit, Moldable, Flexible 2-1/4 Inch Flange Hydro, Box Of 10Product Description Plastic coupling ring allows the pouch and skin barrier to snap together for audible security Barrier are designed for people whose stoma output is mostly liquid Convex is good for people with a retracted or flush stoma Moldable allows for improved skin protection over traditional barriers and provides ease of use and versitility It requires no cutting or measuring, which makes it easy to learn how to use Product Benefits