... -time low temperature. 3. Non-toxic, non-caustic, no off flavour and side ice box1. Reusable for cold use ... 3. Non-toxic, non-caustic, no off flavour and side1. Transportation Long-distance transportation of various biological frozen reagent, pharmaceuticals, ... Electricity-saving, keeping cold when out of electricity, keeping the foods fresh, iced drink, traveling etc. cooling box made of PP material