This is Sado Red Ball Stone from Sado City. It is a valuable, untouched raw stone (initial stone) that is rare nowadays. The color when wet is the same as when polished. The size is approximately 55mm in height, 85mm in width, 45mm in depth, and weighs about 186g, as shown in the first photo. I have washed it with water 2-3 times, but red water still flows out. Water basin and sand are not included. #RedBallStone #Suiseki #RedStone