Medium size for adult upper arm circumference 9.4 to 11.8 inches (24 to 30 cm). New TPU waterproof PICC Line shower cover. Keep IV PICC Line dry. FSA eligible. Stretches easily over PICC Line and bandages. 100% reusable and durable. Adult PICC Line Shower Sleeve. Light, hygienic and washable. Non-slip and won't stick to your arm when showering. Opening holes with high elasticity for easy application. Soft and snug material means it can be easily pulled on and off in a non-painful way. Maintain blood circulation. IV PICC Line shower cover for arm with TPU sealing cover. Waterproof and moisture proof. Recommended for chemotherapy, showering and bathing. Can also be used for people recovering from injuries, surgeries, skin problems.