Storing cooked rice in a [Sumiki Ohitsu] rice container preserves its delicious taste without the unpleasant smell or discoloration that can occur when kept warm in a rice cooker. Since you can reheat it in the microwave when you eat it, it's more economical than keeping it warm in a rice cooker. - Brand: SUMIKI OHITSU - Usage: Microwave-safe - Set Contents: For 2 cups of rice - Features: Contains domestic bamboo charcoal powder - Country of Manufacture: Japan Although it's new and unused, the box has a dent as shown in the fourth photo. The instruction manual is crumpled. Thank you for looking.