Ships from Hong Kong. Made of Cheng Ni Yan, it measures 9.4*6.5**1 inches. Has a cover so you could store ink inside without drying up. Use one end of the ink stone to grind in circular movement with a small amount of water. It s ready to use when the ink becomes very thick and dark. Don t use half-done ink. If gray tone is needed, add water to dilute it.