Feature: 1. Insulated lunch box keeps your cooked meals warm, retain freshness and ready to eat without extra heating or refrigeration. 2. Well sealed ring design is great to keep the food warm and retain freshness, heat proof and high durability 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 premium 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 1.5 hours. Specification: Item Type: Lunch Box Material: Stainless Steel Optional Type: One Layer, Double Layer, Three Layer Color: Green Shape: Square Insulation: Support Microwave Oven: Not Support One Layer Capacity: 900ml Double Layer Capacity: 1800ml Three Layer Capacity: 2700ml One Layer Size (LxH): Approx. 20 x 7.5cm / 7.9 x 3in Double Layer Size (LxH): Approx. 20 x 13cm / 7.9 x 5.1in Three Layer Size (LxH): Approx. 20 x 18.5cm / 7.9 x 7.3in Weight: Approx. 357-674g / 12.6-23.8oz Package List: 1 x Lunch Box Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.