This tight-fitting lunch box features a dome-shaped lid that allows for fluffy arrangements. It prevents nori (seaweed) and other toppings from sticking to the lid and getting crushed. It comes with high dividers to prevent side dishes from shifting and a convenient inner container for separating food, allowing for versatile use. Dishwasher safe and microwave-safe (remove the lid). Includes a name sticker. [Product Size] Approximately 148mm wide x 123mm deep x 56mm high Capacity: 360ml (Includes 1 inner container of 130ml) [Quality Indication (Heat Resistance)] Lid: AS resin (Heat resistance -20 to 100 degrees Celsius) Body, inner container, divider: Polypropylene (Heat resistance -20 to 140 degrees Celsius) Fastener: ABS resin (Heat resistance -20 to 100 degrees Celsius) Gasket: Silicone rubber (Heat resistance -20 to 140 degrees Celsius)