1、The sturdy and durable hidden handle is more convenient and safer to carry, suitable for home, work, travel, and school. 2、Safety lock design, the lock is made of high-quality plastic and can be fastened with one click, effectively preventing leakage and making it easier to carry. 3、The built-in sealing rubber ring can effectively improve the sealing performance of the lunch box, so that the heat preservation is longer and the food is not easy to spill. 4、The inner layer is made of high-quality stainless steel, mirror polished, and the outer layer is made of food-grade environmentally friendly PP material, which is high temperature resistant, safe and hygienic. 5、Foldable buckle, detachable box body, lids to keep fresh and warm, can be separated separately, easy to clean and easy to separate.