1、Change arm posture without water leakage, flexible and you can stretch freely. 2、Excellent cotton inner sheath, soft, comfortable and breathable, silicone with high sealing performance, water‑proof bath is more secure. 3、Upgraded waterproof and better use, the high‑quality materials is safe and odorless. 4、Thickened silicone, it is waterproof, resistant to cleaning, durable, can be used many times. 5、Provide protection for a specific period of time for those who should not be exposed to water but need to take a bath to avoid external damage. 6、Designed to prevent being soaked and infected, it is a super cost‑effective waterproof arm cover. Condition: 100% Brand New Item Type: Waterproof Arm CoverSuitable Scope: When the hand or arm is injured and broken, not suitable for water, but it is necessary to take a bath Suitable Situation: Afraid that the wound will not heal if it gets wet; afraid that the wound will be infected by dust; cannot take a shower after plaster. Feature: 1. Elastic and soft silicone, stretch to fit the skin 2. Excellent cotton inner sleeve, soft, comfortable and breathable 3. The inner sleeve is elastic and free to pull upSize: Size Upper Arm Girth(mm) Lower Arm Girth(mm)  Length(mm) S 200mm / 7.9in160mm /  6.3in 280mm / 11in M 220mm / 8.7in188mm / 7.4in  310mm / 12.2in L 280mm / 11in 230mm / 9.1in340mm /  13.4inError Range: ±10% Instruction: 1. Put the cotton sheath into the affected area to completely cover the PICC catheter and the film; 2. Open the upper opening of the medical silicone sleeve, slowly penetrate the affected limb, and put it on the cotton jacket, completely covering the cotton jacket; 3. Pull open the upper end of the silicone sleeve, elbow to empty the air, reset; 4. At the end of the rain, remove the sheath, wash and dry. 2 x Cotton Shearh 1 x Waterproof Arm Cover