Medium size for adult upper arm circumference 9.4 to 11.8 inch (24 to 30 cm). New TPU Waterproof PICC Line Shower Protector. Keep IV & PICC Line dry. FSA eligible. Stretches easily over the PICC Line and bandages. Reusable and Durable. Adult PICC Line Shower Sleeve. Light, hygiene and washable. Non slippery and will not stick to arm when shower.High Elasticity Opening Hole for easy Pull On. Soft and snug material makes it easily pull on and off in a nonpainful way. Keep blood circulation.IV& PICC Line Shower Protector for Arm with TPU seal protection.Watertight and Moisture protection. Recommend for Chemotherapy showering and bathing. Also can use for people who is recovering from injuries, surgeries, skin problems.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it!