Suitable for both cold and hot therapy and remains soft and flexible after freezing, even at temperatures as low as -20°C.Retains heat or cold for at least 20-30 minutes.Can be prepared by refrigerator/freezer/microwave/reusableSpecifications:Model: BackpackExternal material: Nylon + PVCContents: Gelblue colorSize: 30 x 25 cmHow to use for cold the..

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