Whether you need to keep your lunchbox chilled or want to use it for cooling fans, our freezer pack is the . The medium-sized design makes it easy to carry and store. Using our Ice Box is simple and easy. Fill it with the appropriate amount of water, freeze it, and then use it. Features -Color:Blue -Material:PE -Size:11.50X4.00X3.00cm/4.52X1.57X1.18in - Simple to use: The ice packs for cooler can be filled with an appropriate amount of water and left to freeze in the refrigerator. - Effective cooling: The ice package for cooler can be used with a fan to provide cool air, effectively reducing temperature. - Strong and : The ice packs for cooler bag can be used repeatedly without damage, ensuring use. - Suitable size: packs for coolers is compact in size, does not take up too much in you refrigerator, lunch box and more. - Versatile use: This ice boxes can be for various purposes, including cooling, preservation, making it ideal for lunch boxes and outdoor activities. Package list: 4 packs