When you drink, such as beer, liquor, wine, juice, is a cold beverage equipment you want to avoid Nukuku. Keep the temperature not to change and they are being taken out of the refrigerator to drink time has elapsed, you can drink delicious to the end. By using freeze in the freezer three hours or more a body, you can keep the temperature of the drink I drink about 2 hours or more. ※ 25 ℃ room temperature, increasing the cold insulation effect in the insulation surrounding the periphery of the sheet if refrigerant 500ml cans of beer, to prevent condensation on the body surface to reduce the ambient temperature difference between the body surface. In a convenient adapter with, I can use a drink poured beer cans and plastic bottles, a glass of beer, wine, in various scenes. Both refrigerant and body, I am using made in Japan of safety and security.