HB-4312 Graphite Double Stainless Steel Lunch Jar 2200 (Navy) Features: High heat retention and cold insulation effects due to vacuum insulation. Inner Containers: Consists of three containers: rice container, soup container, and side dish container, which can be stacked for storage. Chopsticks and case included. Microwave: The main body (insulation case) cannot be used in the microwave because it is made of metal, but each inner container (excluding the lids) can be heated in the microwave. Heat Retention Time: Keeps food warm for approximately 6 hours. - Color: Navy - Capacity: Multiple containers - Accessories: Instruction manual - Features: With heat retention function - Design: Stackable Brand new, unused. Please understand that there may be minor scratches due to storage. Thank you for viewing.