Type: Domestic mineral, Nishiki-koseki from Sado, Japan. This is a now-difficult-to-obtain raw stone (unrefined stone). The base is made of clay. #RedBallStone #Suiseki #RedStone Height: Approximately 40mm, Width: Approximately 45mm, Depth: Approximately 30mm, Weight: Approximately 68g (stone size only) The color changes to the polished color when water is applied. Water basin and sand are not included.