Waterproof and moisture-proof: Our membrane is made of high quality silicone. Adhesive elastic rubber and non-tear materials are responsible for keeping the cast and bandage dry during bathing, showering and swimming.Reusable, thick and durable. Abrasion resistant surgical rubber that won't tear. These sleeves are made from a lightweight, hygienic, washable, high quality plastic that won't stick to your hands.It is recommended to shower, bathe, swim or engage in outdoor activities during recovery, surgery, accidents or rashes, burns, skin problems, wounds and scratches. Very suitable for prostheses.Easy to carry. It sticks right away. The suction ring can be positioned easily, intuitively and safely. It can be easily removed without effort. Ideal for thin and thick arms.Left and right arms of this product only have a protective cover, easy to use on the one hand, which does not irritate the skin. Elastic rubber does not impede blood circulation. Please take it off after half an hour.