Ice Pack Leakproof Gel Refrigerant Brix Automatic Water

Shipping ice pack cheaper than traditional ice packs. Dry ice pack stay thin as a piece of paper before soaking water, weighted 3g, lightweight to save more valuable space and shipping fee for you. Reusable ice pack sheet featuring a thin PE backing on one side and soft cloth on the other to provide comfort. The latest technology products will not have mucus after water absorption and will not leak out. Just soak dry ice sheets in water for 3 minutes, dry the excess water on the surface, freeze at least 6 hours, then you can use it for transportation of foods and seafood, perishables, pathology samples, medicine, vaccines etc. Shipping cold pack measures 3.3'' x 4.7'' and expandable materials absorb 33 times their weight in water, can expand to about 1.3'' thick. Stays cold for whole day