Easyou Duan Inkstone Top Grade Ink Stone with Traditional Chinese Dragon Sculpture 5" in Length Duan ink stone, the one best of ink stones for grinding ink stick. Size: 5"in length. Along with an ink stick in pine soot and a wooden box and brocade box outside. o take ink from the ink block, gride the ink block against the moistened ink stone surface in a circular manner. Adjusting color intensity, you will dip the brush upon different areas of the inkstone. The more water, the less intense of the ink's color. Chinese dragon is considered as one of the foremost auspicious symbols of power, and the loyalty and luck signs.