Adapt Convex Barrier Rings can be used to help prevent ostomy output from getting under the pouch seal. They can be cut or stacked together to improve the fit of a pouching system and are available in round and oval shapes to accommodate a variety of stomas. Adapt convex barrier rings can be used to create round or oval convexity, deep convexity when applied to a convex barrier or flexible convexity when applied to a flat barrier.