Type: Domestic mineral, Nishiki-koseki from Sado. This is a raw stone (shoshin-seki) that is currently difficult to obtain. The base is made of clay. #Red Ball Stone #Suiseki #Red Stone Height: Approximately 25mm, Width: Approximately 60mm, Depth: Approximately 48mm, Weight: Approximately 64g (stone size only) The color changes to the polished color when water is applied. Water basin and sand are not included.