KINGSO Portable Stainless Steel Insulated Thermal Picnic Lunch Bento Box Food Storage Carrier Container Blue 2-layer Material: Stainless Steel Color: Green / Orange / Blue Capacity: 1-layer:0.9L / 2-layer:1.8L, Size: pls refer to picture Package included: 1PCS x Stainless Steel Insulated Bento lunchbox This lunch box can only preserve heat for a while not for a long time, pls understand