YiJuHu 4pcs Ice Packs for Lunch Boxes & Coolers, Slim Reusable Lunchbox Cooler for Women, Quick Freeze Space Saving Freezer Icepack, Long-Lasting Picnic Accessories Small Cold Pack, Travel E

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Features:
Good Expansion: This ice crystal box contains crystal particles, the particles are coarse, the expansion is good, the cold storage is strong, the large capacity and high energy storage are used for a long time to cool down and cycle.
Thick and Strong: The case is made of thickened PE material. Freezer Packs for Coolers are leak-proof, sturdy, don't take up a lot of space, and are easy to clean. Water Swelling: Ice crystals will expand during the process of absorbing water and freezing, so do not up when adding water, you need to reserve a certain space. Place in the refrigerator to for about 2-4 hours and can be removed for use in lunch bags, etc.
Keep Cool: It can be used as ice crystals of air-conditioning fans, air-conditioning fans can make the cold air more , and it can store cold for a long time, which can be used repeatedly.
Widely Uses: Lunch Ice Packs Reusable can be used for food refrigeration, breast milk preservation, air conditioning fan ice crystals, nursing , barbecue self-driving refrigerated transportation, etc. Product Description:
usage :
1. First, open the lid of the ice crystal box and it with water until the mark is reached. Do not it up!
2.3 minutes, the small ice crystals will expand into a jelly like state when they come into with water and can be in the refrigerator for 3-6 hours, forming large ice cubes
material:Plastic
Product includes:
1x Ice Crystal Box