Cooler Ice Packs Long-Lasting Ice Bricks for Coolers, 3Pack 14.5x8.8cm Reusable Mini Freezer Blocks Slim Ice Crystals Fit for Portable AC & Lunch Bags Camping Coolers & Desk Fans

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. 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 1x Ice Crystal Box