Material --- The lunch box is made of food grade stainless steel and PP, safe and durable, distortion-free and rust-proof, silicone ring is sealed in each layer, better keep warm and fresh. p> Waterproof - Each inner stainless steel layer is equipped with a soft silicone cover and buckle design, double protection makes the bento box anti-scalding and prevent leakage, you can bring soup or liquid food as you like. Design --- The lunch box with 2 layers keeps food separated and organized. Ventilation holes on the lid make it easier to open the lunch box when taking out hot food. Portable handle for easy carrying. Portable --- This storage box with 2 layers, the bottom layer is a single compartment, the top layer is 2 compartments for more variety and more food Application --- The lunch box not only serves as a lunch box container, but also can be used as a cooler bag, ideal for using in office, work, school, kindergarten, picnic and other outdoor activities.