Marlen Manufacturing UltraMax One-piece Cut-to-fit Drainable Pouch with AquaTack Hydrocolloid Convex Skin Barrier and Kwick-Klose Fastener 1/2" to 1-1/2" Opening, 9" L x 5-3/4" W, Transparent, 16Oz, Odor-proof. Marlen Drainable Pouches are available with a wide range of skin sensitive adhesive flanges and can be supplied with either a flat base, or a convex base in a One or Two-piece system. The most popular products are those with the cut-to-fit centers as this enables each and every client to have the exact fit they require. Advantages of a one-piece system.Ease of a disposable system. Odor-proof pouch material.Quiet, Built-in comfort cover facing the body. Leak-proof for added protection and security. Extra-large drainage spout for easy emptying.For Ileostomies and Colostomies.