1、Insulated lunch box keeps your cooked meals warm, retain freshness and ready to eat without extra heating or refrigeration. 2、Well‑seal ring design is perfect to keep the food warm and retain freshness, heat resistant and durable for long term use. 3、There are safety buckles on both sides of the lunch box, which can be fastened easily by pressing. There is no need to worry that the lunch box will loosen. 4、With air hole, press the air hole can be sealed, to open the lid of the lunch box before open the air hole , can be removed to clean without stains. 5、The liner is made of high quality stainless steel, highly polished and easy to clean. 6、Adopts ergonomic arch handle design, more convenient to carry, when not used can be received up. 7、When placed at room temperature of 25℃, the insulation time is about 5 hours.