... gel,clean, nontoxic, flexible. 2. Longer-lasting, high performance thermal 3. Leakproof 4. Re-usable APPLICATIONS: keep products cold ... in transit and maintain desired shipping temperatures for drugs, blood,biochemical reagent, drug, blood, vaccine, sea ... ,clean, nontoxic, flexible.2.Longer-lasting, high performance thermal protection for valuable shipments.3.Leakproof4.Re-usable