[FOOD GRADE]: This lunch box is crafted from high-quality materials, featuring premium PP plastic and 304 stainless steel. It is durable, resistant to rust and corrosion, and provides a safe and healthy food storage solution. The inner layer of the bento lunch box is made from high-quality stainless steel, polished to a mirror finish for easy cleaning. The outer layer uses food-grade PP material that is high-temperature resistant, ensuring safety and hygiene. [KEEP WARM]: The insulated lunch box for hot food keeps your meals warm for approximately 1 to 2 hours at 77 degrees Fahrenheit. When used with the insulated bag, the retention time increases. The hollow design minimizes heat retention during cold winters. It features a detachable stainless steel tray that is easy to disassemble and clean. Simply pour boiling water into the bottom container, close the lid, and heat your food in just a few minutes. [CARRY ABOUT]: This bento box includes a two-in-one compartment design perfect for daily use, allowing you to enjoy homemade healthy meals anytime, anywhere. You can pack meals, salads, and fruits in the bento lunch box. It is ideal for work, sports, and travel. For children going to school, picnics, or camping, the lunch box is easy to carry in a bag, easy to open and close, and simple to clean. [VENT HOLE]: The bento box features a vent hole design. By pressing and holding the vent hole, you can seal the container. The lunch food warmer ensures good sealing performance and can be removed for cleaning without leaving stains. The silicone sealing strip prevents leakage and maintains freshness, while the layers of the insulated lunch box are tightly connected to avoid spillage and unwanted odors. [HIGH QUALITY]: The insulated hot lunch container boasts an exquisite and generous design that does not occupy much space. Shape: square Number of boxes: double layer Capacity: 1200ml Microwave oven: available Style: modern simple Pattern: solid color Product category: lunch box Type: 1 Colour: blue Material: 304 stainless steel + PP Size: 20x13.5x8cm Package Contents: 1x Lunch Box 1x Spoon Only the above package content; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowable error is +/- 1-3cm.