HIGH QUALITY: Medical grade TPU waterproof material. Moisture protection, FSA eligible. Keep PICC Line and bandage dry. Tough, durable, Odorless and tasteless, latex-free. Safe for use. 100% WATERPROOF: High elastic opening makes it easily pull on and off in a non-painful way. It can always keep the inner plaster casts or wound dressings dry and arm blood circulation normal. 3 DIFFERENT SIZES: S size fits for kid or child. M and L size fits for adult. Arm Circumference 7.5" to 13.8" (19 cm to 35 cm). Please refer the size detail on our picture before make order. APPLICATION: Covers and protects your PICC Line dressing , Insulin Pump, Brace or other medical device for showering bathing; Also great for concealing tattoos or skin conditions like eczema. it can be even used for swimming or in hydro pools provided some basic common sense precautions are taken. It suitable for people who is under intravenous infusion, or recovering from chemotherapy treatment, surgeries, skin problems. WARM HEART PACKAGE: Beside PICC line protector, we can also get: Waterproof handbag, portable and convenient in your travel. 2 pcs of cotton lining, soft comfortable and breathable. they can offer the best protection to your PICC Line. Small Size:Upper arm circumference: 19cm/7.7" - 23cm/9.1", Lower arm circumference: 16cm/6.3" - 19cm/7.7" Package Included:1* PICC Line Cover.Items from Sheng Xinshun's shopProducts from KJ's store