Usage Tips:Advanced Materials: : This PICC Line shower cover are made of ECO-Friendly Medical Grade materials TPU, which is LATEX FREE and better than PVC Shower cover bag in all aspectsWaterproof: : The hole of the arm cast cover bag uses the same high-elastic neoprene as the diving suit, which is completely waterproof, keeping your elbows dry and comfortable during showering and bathingWide Range of Uses: : PICC line sleeve can keep IV and PICC, plasters, bandages, and wound dry, provide all the protection to keep water away, suitable for the arms of most adultsReusable: : PICC protector is easy to put on & off, the strong material makes it reusable for a long time, After each shower, only need to wipe outside than hang it to dryStretchable Entrance: : Stretchable hole is make sure it fits most adult and older kids. up entrance suitable arm size range: circumference from 9.5" - 15.7", diameter from 3" - 5": down export suitable arm size range:circumference from 6.2" - 12.5", diameter from 2" - 4":