[Waterproof, Double-Layered and Airtight] The container benefits from a silicone-lined airtight lid with a built-in ventilation system. It is double-layered and airtight. This prevents the bento box from overflowing and keeps your food fresh longer. Wherever you are, you can put it in your bag, backpack or purse and enjoy fresh food. [Material] Materials approved for children, lunch boxes, odorless, stainless and mildewless. Safe, eco-friendly and reusable bento box. [Fashionable Bento Box] Replace your old bento box with this modern Japanese bento box. Your chic and simple design will be enviable! Our lunch box will surely satisfy your family. It is an original gift for all occasions: Christmas, birthday, Mother's Day, etc. [Scope of application] Our bread box is very suitable for use as a fast food box in offices, workplaces, schools, kindergartens, picnics or anywhere you want to go. [Safety in use] Microwave ovens, refrigerators and removable inner trays can be placed in the microwave (Note: Do not put the outer box in the microwave or dishwasher), but it hand washing is recommended.