Product Details: A coolant that can be used instantly when you want cold air. Number of Boxes: 5 pieces; Outer Dimensions (Length): 4.1 inches (105 mm); Outer Dimensions (Width): 6.5 inches (165 mm); Cooling Time: 30 - 50 minutes (at room temperature of 77°F (25°C); *Depending on usage condition); Reusable: Yes *After use, you can put it in the freezer for 10 - 12 hours and reuse as a storage age; Approx. 4.2 hours of storage age; Approx. 4.9 oz (12 oz (12 oz (12 g)