WATERPROOF:Waterproof knee cast covers for shower, when you take a bath or shower, knee cast cover keeps your bage wound out of the water virus. SAFETY EASY TO USE: Tough durable waterproof knee cast cover protector for knee. Elastic rubber flange will not cut off blood circulation.Easily slide on the leg cast cover before bathing or showering to prevent water from damaging your cast irritating your skin. REUSABLEHIGH-QUALITY:The knee protector uses an elastic rubber seal with easy to use pull-tabs. Reusable, washable, hard to be torn,Made of high quality PVC, polypropylene rubber,Light, hygiene,waterproof knee cover will protect the bages wounds well. ONE SIZE FITS MOST ADULT:The hole use the baggy design was intentional to make sure one size fits all customer requirements.suitable for most men women. ONE SIZE FITS MOST ADULT KNEE: The big hole center fit the knee circumference 3.5""-9"" the small hole center fit the knee circumference 1.5""-6"", knee cast cover 17"". Suitable for most Adult knee. Package includes:1The knee protector Dimensions may vary slightly due to manual measurements Due to the different display screens, there may be some differences between the color the real object, thank you