Features: Premium 304 nonrust steel lunch box features double layer insulation technology, maintaining food temperature long than standard container for reliable meal freshness. Crafted with food grade 304 nonrust steel and leak proof silicone seal, this user friendly bentos box ensures corrosions resistance and spill proof portability. Ideal for office worker, students, and outdoors enthusiasts seek durable, healthy meal solution during commutes or activity. Keep soups warm during winter commutes or salads chilling at summer picnics with its functional thermal control and convenient design. Modern aesthetic meet practicality in this portable lunch container, perfect for gym goers, traveler, and style driven city dwellers. Specifications: Component:304 nonrust Steel, Plastic Color:Green/Yellow Type:Single Layer /Double Layer(Optional) Package Includes: 1Pc 304 nonrust Steel Bentos Box note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color. Thanks!