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Dry Ice Packs for Coolers Product Features 1. Reusable ice packs, 5 ply construction, flexible when frozen, can be cut or folded to fit around products or in containers. 2. 100% non-toxic 3. Lightweight. We have different style package: 3.3" x 4.7"/sheet, 25 sheets,3.3" x 4.7" /sheet, 50 sheets,,One frame weights 3g/cell before soaking, 100g/cell after soaking. It is good to save more space and more money during the cold transport. The poundage of internal polymer is 33 times more than water with same volume. So it works longer than general ice. Using Method: 1.Soak fully in water about 3-5 minutes. 2.Take out from water, rest for 1-2 minutes before freezing, dry the water on both side.3.Freeze for 6-10 hours.Suitable occasion 1.Great for camping, hunting, hiking, fishing, picnic, etc. 2.Perfect for transporting food, protecting seafood, vegetables, fruits, salad, beverage, etc. 3.Can be used in coolers or lunch bags 4.As a cold therapy or ice pack for pain relief.