These cooler ice packs are ideal for a variety of uses, including keeping your lunch . The compact design makes them easy to fit into lunch bags, lunch boxes, or cooler bags. They are reusable and can be refrozen multiple times, providing a convenient and cooling solution. Features -Color:Blue -Material:PE -Size:18.00X6.00X4.00cm/7.07X2.36X1.57in -Rapid temperature reduction: the ice crystal material ensures quick and efficient cooling, suitable for hot summer days -Versatile application: suitable for use in multiple rooms, these ice packs are ideal for cooling your living room, bedroom, or office -Cooling: enjoy a quiet and serene environment with these ice packs that operate without making any noise -Material: bills and reduce your carbon footprint with these energy efficient ice packs -Compact and convenient: the minimalist design makes these ice packs easy to transport and store, providing cooling convenience wherever you go Package list: 4 packs