1/2/3/4 Layer Stainless Steel Bento Insulated Lunch Box Food Storage Container Thermo Server Thermal (1 layer, Blue) 100% brand new and high quality. High-quality stainless steel, solid and durable, no deformation. Plastic handle, scald-proof and more resistant to rising heat. Used only for the storage of food, Not for cooking. The closed container can be stacked.