This is a far-infrared carbon heater made by Yamaki Denki. It is for the Omotesenke school of tea ceremony and other uses, for electric heaters and furo (tea ceremony brazier), with a trivet, and a high/low switch. The trivet allows for use with iron kettles and tea kettles. Although unused, the outer box has some scratches and dirt due to home storage. Size: Approximately 17cm in diameter, 11cm in height Material: Ceramic Manufacturer's suggested retail price: Open, Rakuten Ichiba tax included ¥22,000