Ice Packs for Shipping Frozen Food 5 Sheets Cold Pack Cool Bag Coolers Dry Transport Perishables, Freezer Block Mailing Keep Cooling

【Magic Freezer Blocks】- Dry ice packs as thin as paper, but they will become freezer blocks after absorbing water, only need to soak into water for 5 minutes, it will absorb water automatically. Make sure let ice block sheets dry completly before freezing, then when placing in freezer, DO NOT FOLD MESH SIDE TOUCHES, Do Not let the mesh surface and the refrigerator contact, the mesh side and the mesh side should not touch, or it will stick and freeze together. 【Long Lasting Coldness】- Freeze the freezer blocks for 6 hours after absorbing water, the freezer blocks will stay cold for 6 hours at room temperature and 10 hours in insulated bag. Ice packs are ideal for shipping frozen food, perishables, frozen meat and fish, seafood, chocolate, candles, flowers, breast milk, milk, and more. 【Safe & Reusable】- Freezer blocks are made from non-toxic material, safe for daily use. 3 layer strong constructions make sure it can be reused for multiple times. This economical ice pack plays a vital role in the transportation of food, vegetables, frozen seafood and meat, cold drinks, etc. in business or industry. 【Multipurpose Ice Packs】 - The freezer ice blocks can be used for many purposes need added coldness: lunch box/bag, cooler, insulated bag/box, cool box/bags, picnic, party, car travelling, fishing, hiking, long distance travel, etc. 【Easy to store】- Keep the ice bag dry and store it in a dry and ventilated place. The heavy duty, double sided plastic sheets are extremely durable and can be recycled many times. If leftover dry ice packs are not in use, store them tightly sealed. Because the ice pack will absorb moisture in the air when placed in the air, the water absorption performance of the ice pack will be reduced.