SUR-FIT AutoLock Two-Piece Ostomy System is the one-touch secure and innovative flanging system: pouch locks automatically onto wafer with a single light touch. The two-piece system provides versatility and can be removed or interchanged with other pouch types without removal of the skin barrier/wafer. SUR-FIT AutoLock drainable pouches are composed of a lightweight plastic material that is odor-proof and quiet under clothing.