Used for 5 weeks due to a fracture. Washed the inside and outside after use. 【Excellent Water Resistance】: Made with highly elastic silicone, it adheres closely to the skin to prevent water from entering. Protects bandages, wounds, and injured areas from moisture and water, preventing infection. 【Universal Size】: Based on customer feedback, the opening of the silicone ring has been improved to fit most men's and women's arms. Fits arm circumferences from 20.32cm to 50.8cm. 63.7cm(W)*42.6cm(H). 【Soft and Comfortable】: Medical-grade elastic silicone is soft and gentle on the skin, causing no irritation; the elasticity is appropriate, does not affect blood circulation, and does not form strangulation marks. 【Upgraded Design】: Removed the plastic ring for a lighter weight. The sealing ring is made of softer silicone instead of neoprene, with no chemical odor and more comfort. 【Reusable】: After rigorous testing, it is tear-resistant and can be reused many times. 【Applicable Range】: Suitable for protecting casts, bandages, rashes, abrasions, burns, and cuts. Ideal for adults recovering from arm surgery or injuries. 【Easy to Put On and Take Off】: Without the bulky plastic ring, it can be put on and taken off independently without the help of others, which is very convenient. 【Easy Storage】: The unique hook design makes storage very convenient. After use, hang it in a well-ventilated place to dry quickly.