Usage:
     Put this product into freezer to be refrigerated in advance for 12 hours, and then use as refrigerating media when needed.
Characteristic:
     1.This product is made of biological material by high-tech process. It is clean, nontoxic, elastic, and gluey.
     2.This product has a high cold capacity, so excels in keeping cold.
     3.This product can be widely used safely without contamination.
     4.This product can be used repeatedly.