A. [Keep food and drinks refrigerated] Use the refrigerated backpack, which can maintain the refrigeration effect for around 18 hours. It is suitable as a lunch box and also applicable to outdoor activities. B. [Store breast milk] Bring breast milk back for the baby to help the baby grow. There's no need to carry multiple backpacks. C. [Save space] The ice packs can be put into various lunch boxes or coolers, taking up less space for food or drinks. D. [Reusable] Different from ice cubes, ice packs won't make a mess when thawing and can stay frozen for a relatively long time. When the ice packs start to melt, sandwiches and other foods won't be damaged. E. Note: The ice box filled with water can be used after being filled with approximately 80% cold water, and then put it in the refrigerator for about 5 - 10 hours. Due to thermal expansion and contraction, avoid filling it with too much water. Capacity: 200 ml. Note: No liquid. F. Color: Blue G. Material: PE H. Dimensions: 165x11x15 cm I. Package contents: 8 ice packs. The package only includes the above contents and no other products. Note: Light and different displays may cause slight differences between the color of the item in the picture and the actual product. A measurement error of +/- 1 - 3 cm is allowed.