Made of polyethylene, with carrying handle. Cold pack with cold-generating liquid for long-lasting cooling performance (-12°C frozen for fish, meat). Ready for use by cooling in the freezer. It is recommended to put the cold pack in the freezer(-18°C) for 24 hours. They are easy to clean and suitable for dishwashers up to 85°C. The eutectic cooling gel is glycol-free. The accumulators meet all criteria required for use in connection with food.