This custom tin lunch box is a design inspired by a blue sky. It has three features, integration of aesthetic and practical functions; design elements that transform it into an integrated part of the whole in terms both organizationally and visually, and realistic innovation able right up to its appearance demonstrating state-of the art economic development theory Making this goal consistent: -The fan became more than just a fan: on principle. The lunch box is made of solid tin, ensuring long-term use. Its main functions are to keep food fresh and to keep the temperature until you are ready to eat, even if it’s either hot or cold outside. High-tech items like a secure silicone seal and a lid with airtight mechanism can cater to food no longer leaking out in transit, allowing people who are on the go or have homes far away from places where they shop for everyday conveniences to take comfort as well as sustenance with them The lunch box also equips its own wide opening for easy access and ergonomic handles. For picnics and on the road, from daily work or student meals, it is essential for anyone with a busy lifestyle to have one in hand.*/ (Please see A comprehensive explanation for such application. Recipes)