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Product Name: Universal Ice Crystal Box Material: thick PE Ingredients: high polymer compound preservative Solidification freezing point: -12 degrees Use times: It can be used forever without damage Product performance: It is made of high-tech configuration materials is flexible and is in a colloidal package to maintain excellent coldness safe and wide-ranging and does not form pollution Product advantages: The freezing time is short the cold storage capacity is higher and the use time is longer than other ice crystal boxes. It is suitable for use in a variety of scenarios safe and convenient Note: When not in use place it in a cool place and avoid direct sunlight. Please use it carefully please do not damage it by external force please do not eat it and freeze it in the freezer for 5-8 hours before use Brand: OTHER/Others Product Type: Ice Bag