Homemade Frozen Gel Packs Cooler For Cooling

Ice pack flask Usage:

1. Filling the water to plastic box 
2. Store the ice box in the freezer for about 10-12 hours. It can be used until the inner material is frozen.
3. Put the items (food, vegetables, drinks-) in the container and save some space for inserting ice boxes. Or you can place the ice box just above the items. Quantity of ice boxes depend on the climate, way of transportation, distance of transportation as well as sizes of ice boxes.
4. The ice in the ice box will turn into gel gradually after several hours. Please store the ice box in the freezer for 12 to 24 hours for later use. This product is reusable.