This product is used to collect urine in an ambulatory patient.Soft vinyl construction for durability and patient comfortUniversal connections to attach indwelling catheters or external cathetersT Tap drain valveStretch woven Pre attached adjustable button hole leg strapsLeg straps available in 23 or 30 lengthsMedium bag 600 ml 19 oz. capacityLarge bag 900 ml 32 oz capacityAvailable with or without 18 extension tubing.