One two punches will fall below freezing in no time. Perfect for sports and leisure. For driving and studying fatigue, and sleepiness. For working outside or watching sports, such as golf, tennis, etc. ● For first aid aid in headaches, toothaches, fevers, bruises, sprains, burns, etc. For keeping food cold Contents: Vitreous, urea, water (Cold Retention) Approx. 30 minutes (room temperature 57°F (25°C)) (*Changes depending on usage conditions and outside temperature. How to Use: There is a water bladder inside, so please check it with your fingertips, and fold it firmly in a flat surface with a water bladder. The temperature will suddenly fall below freezing point, so please be sure to wrap it with a towel when it is exposed to the body. (As there is a risk of frostbite, please be careful for infants and those with sensitive skin. (Re-use) (1) Place it in the freezer to cool it thoroughly. (2) When cooling in the freezer, wipe the outside of the bag thoroughly and allow it to cool. Note: This product is not grocery or drinking water. Never put it in your mouth. In the event that this product is swallowed, please drink a large amount of water and discard it. If it gets into your eyes, immediately rinse it off with water for 15 minutes. Consult a professional immediately after first aid procedures. In the event that the liquid from the bag breaks onto your clothes or skin, please rinse it thoroughly with water. Please do not tear the outer bag. Storage Instructions: Store in a cool place away from direct sunlight. Please be aware that if stored at high temperatures (above 88°F (35°C)), the chemicals inside may harden. Please keep out of reach of children.