Material: Bento box is made of high quality stainless steel, safe and healthy, strong and durable. Portable: The bento box is lightweight and can easily be carried in a backpack or lunch bag when going out or preparing for a picnic. It keeps food fresh and you can eat healthy and delicious food even in the wild. Stackable: This bento box is stackable, and it can bring your home lunches, salads, fruit and desserts to the office for both storage and space saving. Safe to use: Bento boxes are filled with food and then frozen, making meal preparation simple for everyday use. Date First Available March 19, 2024