1. Use high quality Stainless Steel & Plastic, Better than others.2. High and Low temperature resistant, Solid and never be out of shape.3. Longer lifespan and more durable. more than 50,000+ hours.4. Tested before selling, all the products are professionally designed, assembled and tested by our RD depart.5. Keep food fresh, hot and bacteria-free, Keep your meals fresh, hot and bacteria-free, like eating right out of a bowl, easy to get to right down to the last bite. Keeps food hot or cold and doesnt influence other tier's temperature. 6. Leak-proof lids, Lids are leak-proof and so you can carry your yummy gravies without any worries. Each layer has a sealed silicone ring that completely prevents food leakage, and there are square buckles that tightly hold the bento box.7. Premium containers , Perfect for your waste-free lunch on the go. This lunch bento box is made of high-quality food-grade stainless steel + plastic, safe, anti-rust and anti-corrosion. It wont retain flavours or scents.8. 2 Years Warranty, quickly and easily deal with any problems9. Fast delivery and Free shipping, it just take you 7-20 days to receive it.SpecificationsLife Time: 50000+ HoursWarranty: 2 YearsColor: Blue/Green/OrangeMaterial: High quality Stainless steel & plasticSize: 15x9cm/5.91*3.54inchWarm tip:1. Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item.2. These cannot be used in the microwave oven.New ItemNote:Please allow minor deviation due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Package Included: 1X Stainless Steel Insulated Lunch Box (Color Optional)