Marlen UltraLite One-piece Urostomy Pouch with AquaTack Hydrocolloid Deep Convex Skin Barrier and E-Z Drain Valve 1" Opening, 9-1/4" L x 5-3/4" W, Transparent, 16Oz, Odor-proofMarlen UltraLite Urostomy Pouches has Free-flow stem which allows unobstructed flow of urine into leg or night bags, even if pouch twists. It has Push-pull E-Z Drain Valve which is permanently sealed to the pouch, so no wet fingers when emptying pouch. Features non-return reflux valve. New slim, contoured design. Choice of skin barrier. 3 choices of convexity (deep, shallow or flat). Cloth-like comfort cover on body side.Choice of transparent or opaque outer side. Complete range of stoma sizes from 1/2" (12mm) to 2"(50mm). Completely odor-proof material. "Free-flow" stem allows unobstructed flow of urine into leg or night bags, even if pouch twists. "Push-pull" E-Z Drain Valve is permanently sealed to the pouch no wet fingers when emptying pouch.Non-return reflux valve.