Description Whether you need to keep your lunchbox chilled or want to use it for cooling fans, our freezer box is the great choice. The medium-sized design makes it easy to carry and store. Using our Ice Bag is simple and easy. Fill it with the appropriate amount of water, freeze it, and then use it. Features -Color:Sky-blue -Material:PE -Size:18.00X6.00X4.00cm/7.07X2.36X1.57in -Note: Need water filling - Unique design: The freezer boxes for coolers are made with unique materials and processes, effectively reducing temperature. - Convenient to use: After freezing, the freezer boxes for coolers can be placed in a fan for long-lasting cool air, suitable for summer. - Medium size: The ice boxes have a moderate size, making it easy to carry and place in various settings such as offices, bedrooms, and more. - Easy to use: The reusable ice boxes are convenient to use, simply fill it with suitable amount of water and freeze it in the refrigerator. - Multi-functional: The freezer boxes can be used for cooling, insulation, preservation, and more, making it suitable for home, camping, and more. Package list: 4 x Ice Cooling Boxes