It is non-toxic, tasteless, non-corrosive, non-anti-radiation, elastic and reusable. Biological Ice PackFeatures: 1. The product adopt high-tech biological materials, it is clean, non-toxic, and full of flexibility.2. Its content is jelly, and has excellent cooling performance. 3. The physical properties such as cooling capacity, the thawing rate of sucking heat, and service life have reached the ...