1. Leshi Stone Inkstone mixes hardness and softness subtly and interacts well with Chinese ink.
2. To use ink in the traditional stick form, an ink stone is required.
3. Made of stone that was formed by marine deposit, the Duan ink stone is dark purple in colour.
4. The essence of each is respectively xuan paper and hui ink stick from Anhui, duan ink stone from Guangdong and the hu writing brush from Zhejiang.
5. The stone used must be of relatively fine whetstone materials to facilitate the grinding of the ink without harming the bristles of the brush pen.