To find the liquid bag in the ice bag and make it broken and 3 seconds later it will be freezed. Then shake the bag up and down to make the content fully mixed, and the temperature will be depressed below zero by the ice bag in 2 minutes.
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  Properties

    Tears easily for immediate application and light weight.
    Opened smoothly and easily, good unwind tension.
    Good tensile strength.
    Self-adhering, sticks to itself, no need of clips or fasteners. 
    Sweat and water resistant. 
    Well flexible and breathable. 
    Quick and easy removal by hand, with no sticky residue.

  Typical Applications

    Medical treatments for the surgical dressing.
    Protect and wound dressings. 
    Clinic and hospital products. 
    Emergency treatment products.