Feng shui becomes six coppers.

Liu Shan Copper Coin: Six ancient coins strung together can be made of copper coins issued by six emperors of the Qing Dynasty, namely Shunzhi, Kangxi, Yongzheng, Qianlong, Jiaqing and Daoguang, also known as Liu Di Coin. Specializing in Huang Wu and Erhei. The sixth is the Six Nothing, which belongs to gold in nature, while Huang Wu and Erheisha belong to earth, and the earth gold is used to ward off evil spirits (feng shui should be venting rather than fighting).