BLOCK WATER AND MOISTURE OUT: Our diaphragm seal is made of high-quality medical-grade silicone. Tight elastic rubber and not easy to tear material of waterproof cast cover is what keeps cast and bandage dry while bathing, showerFDA CERTIFICATION: The cast bandage protector is approved by the FDA. No odor and latex-free. Hand cast protector ideal for home or hospital use. Great to protect you recovering from surgeries, burns, rashes, lacerationsSUITABLE FOR MOST CAST OR WRIST SIZE: The cast cover fits most adults wrist or kids hand size. Length up to 13 inches, circumference from 1.5 to 5 inches. Also can cover injury or plaster finger, wrist, and handSAFETY AND EASY TO USE: Elastic rubber flange will not cut off blood circulation. No need for tape or straps. Easy pull-on / pull-off. Easily slide on the hand cast dressing before bathing or showering to prevent water from damaging your cast and irritating your skinLIFETIME GUARANTEE: Dont worry about the hand cast bag ever leaking, breaking or being damaged. We provide a lifetime warranty. We will replace it or give your money back if the waterproof arm cast protector is brokenProductHand Cast Cover waterproof. Please feei free to let us konw whild you meet any issue about the productUniversal size. The cast cover fits most adult to useSafe and convenient for shower or bath. Easily slide on the arm cast protectorFDA registered and CE approved. Odorless and tasteless. Friendly to latex sensitive peopleReusable and durable material. Wont rip or tear Waterproof NotesPlease do not reuse if the protector is soiled internally or damagedPlease control the wear time within 30 minutes to prevent cutting blood circulationKeep out of reach of children unless under adult supervisionBe careful to avoid any sharp edges when putting on or taking off as this may damage the sealParameter:Size: Hand length up to 13 inches,circumference from 1.5 to 5 inchesMaterial: PP + PVC