To Sum Up, The Hot And Cold Bag Has a Variety Of Benefits Such As Heat Insulation, Portability, Dust And Oxidation Resistance, Lightweight And Durable, Easy To Clean And Maintain, Etc. It Is Suitable For Food, Medicine, Cosmetics And Other Fields, And Can Well Protect The Items From The External Environment. In Use, Need To Pay Attention To The Reasonable Use, Avoid Overload And Breakage, In Order To Ensure Its Thermal Insulation Effect And Service Life!