1. Hygienic and eco-friendly lunch boxes Compared to plastic containers, stainless steel is a material that is less susceptible to food stains and odors. Therefore, it is hassle-free because it can be cleaned with a quick rinse with a small amount of detergent! The main body is dishwasher OK (* except for the lid). 2. The lid becomes a cutting board and kills two birds with one stone. The sturdy bamboo lid is also recommended to be used as a cutting board for cutting sandwiches and fruits. There is no doubt that it will be useful for camping and picnics. 3. Heat retention + packing for safe carrying Since it retains heat, it does not damage your lunch box in the summer, and you can eat a warm lunch at any time. It comes with clasps on both sides and silicone packing, so it prevents leakage of side dishes with a lot of soup and is safe when carrying! 4. Functionality and durability are outstanding! Stainless steel is light and durable! It is rust-resistant and does not have to worry about chipping or cracking, so you can continue to use it for a long time. In the summer, when you are concerned about the growth of bacteria, you can put it in the freezer as it is.