Type: Domestic mineral, Nishiki-koseki from Sado. This is a now-difficult-to-obtain raw stone (shoshin-seki). The base is made of clay and can be removed. #Red Ball Stone #Suiseki #Red Stone Height: Approximately 25mm, Width: Approximately 75mm, Depth: Approximately 45mm, Weight: Approximately 88g (stone size only) The color changes to the polished color when water is applied. Water basin and sand are not included. Sado Nishiki-koseki is characterized by its beautiful color, which is based on red.