Medium size for upper arm circumference 24 to 30 cm 9.4 to 11.8 inches. New TPU waterproof PICC line cover for shower. Hold IVPICC line dry. FSA approved. Can be easily stretched over PICC line and bandage. 100 reusable and durable. PICC line sleeve for vuna. Lightweight, hygienic and washable. Nonslip and does not stick to the arm when showering. High elasticity in the opening for easy donning. Soft and tight material makes it easy to pull on and off in a painless way. Maintain blood circulation. IVPICC line protector for arm with TPU sealing cover. Waterproof and moisture protection. Recommended for chemotherapy shower and bath. Can also be used for people recovering from injuries, surgeries, skin problems. Please pay attention to the size and dimensions of the product when shopping to ensure that it meets your needs. In the title and we have provided detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please do not hesitate to . We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you like it