Urocare Uro-Safe - Urinary Drainage Leg Bag (Thumb Clamp Valve) is a sterile, disposable drain bag for use with condom catheters and foley catheters. It has a built in anti-reflux valve that stops urine from flowing up the catheter tubing. The two-position thumb clamp valve has a simple open/close setting, making it easy to drain your catheter bag. This urinary drainage bag is available in either semi-transparent with opaque back and semi-transparent front and back.