This product does not need refrigerating or freezing and any cold treatment in advance , only need to pinch broken inside bag , can refrigerate rapidly , when the room temperature is 27 degrees centigrade , cold bag can be reached in the twinkling of an eye for refrigeration - 5 degrees centigrade , refrigeration can be up to 3 hours in duration 该产品无需冷藏或冷冻及任何预先的冷处理，只需捏破内袋，便能迅速制冷，室温为27时，制冷瞬间冷袋可达5 ，制冷持续时间可达3个小时。
This product does not need refrigerating or freezing and any cold treatment in advance , only need to pinch broken inside bag , can refrigerate rapidly , when the room temperature is 27 degrees centigrade , cold bag can be reached in the twinkling of an eye for refrigeration - 5 degrees centigrade , refrigeration can be up to 3 hours in duration 该产品无需冷藏或冷冻及任何预先的冷处理，只需捏破内袋，便能迅速制冷，室温为27时，制冷瞬间冷袋可达5 ，制冷持续时间可达3个小时。
