Made of environmentally friendly materials, healthy and tasteless. Good sealing and longer storage time. Lightweight and sturdy design helps protect the product itself, the food and drinks inside, and is resistant to stress Large heat dissipation area, higher cooling efficiency and faster conduction. The insulation performance of polyurethane foam insulation is twice that of ordinary. Convenient cooling and heating control, removable power cord. Magnet bayonet design, tightly sealed without air leakage.