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Thermos Twin Ice Packs (2 x 200g) - 179504: This set of 2x100g ice packs are easy to use by just placing in a freezer overnight Add a Thermos Ice Pack to a Thermos Cool Bag to keep your food and drink cool throughout the day! Keeps food cool and fresh for hours. For use with insulated cool bags and cool boxes. Key Features: Tough polypropylene exterior, Heat sealed leak proof cap, Non toxic aqueous liquid, Meets and exceeds.