Item Type: Ice Pack Material: Rubber Size: Approx. 21 x 20 x 5cm / 8.27 x 3.94 x 1.97in It is an alternative to ice. Use with the incubator, can effectively keep cool. Suitable for carrying milk bags, sending food to school, work, outdoor activities, travel, etc. Widely used in sea food, flowers, fruits and other temperature sensitive products transportation. Package List 2 x Ice Pack 1WIDE APPLICATION: Each empty ice pack is large in size and it has plenty of space inside, can be used not only for lactation, but also for food preservation. 2PERFECT SHAPE: The shape of the ice pack fits perfectly into 6 baby bottles so that all of your bottles are in direct contact with the ice pack, ensuring they stay cold. 3PORTABLE: Lightweight and portable design allows you to save more space, perfect for lunch bags, cool backpacks, breast milk bags, outdoor camping. 4SAFE MATERIAL: Made of premium rubber material, safe and environmental friendly, will not deform after being frozen, durable, can be reused over and over again. 5EASY TO USE: Add water to the cooling bottle, place in the refrigerator about before use, and put all your favorite drinks in direct contact with the ice pack, cooling faster and keeping cold for longer.