Marlen Weight-Less Odour-Ban Ileostomy Pouch Medium, 9-3/4" L x 5-5/16" W, White, 18Oz, Odor-proof, ReusableMarlen Odour-Ban Ileostomy Pouch is a lightweight plastic pouch which is constructed with the patented Odor-Ban inner liner. It is odor-resistant and requires a separate mounting ring and pouch closure. Lightweight plastic pouch with a gas-relief valve permanently sealed into the top of pouch. For persons with excess gas accumulation. Requires a separate mounting ring and pouch closure.