How many stones can stop evil?

Not limited to the relevant public information, there is no requirement for the weight of the stone, but Taishan stone must be used. Taishan stone is the most ideal tool to ward off evil spirits, and it has always been the best choice for everyone to improve home feng shui. Shi Gandang, a small stone tablet standing outside the house or in the street, is named General Shi, with the word "Shi Gandang" engraved on it, which is one of the folk methods to ward off evil spirits. This style prevailed in the Tang Dynasty.