Safe & Reusable: This upper arm shower cover is made of waterproof TPU material for effective moisture protection. The inner sleeve features comfortable and breathable fabric that is durable, washable, latex-free, and non-slip. Safe for use during recovery from injuries, surgeries, and skin conditions. Usage Tips: Insert the lining and place the sleeve over the arm. Bend your arm and lift the edge with your fingers, then press on the sleeve to release air. This creates a tight seal that prevents water from entering. Applicable Users: Suitable for most adults weighing 45–64 kg, with an upper arm circumference of 19–23 cm and lower arm circumference of 16–19 cm. Easy to Wear: The high-elastic opening allows for comfortable, pain-free application and ensures the cover does not stick to the arm during use. Helps keep plaster casts, wound dressings, and bandages dry while maintaining normal arm circulation.