I bought it in Nanning, Guangxi instead of Du 'an County. It is sold in Niudun, Nanning, and the price is 1000 to 5000.
Dragon hunting ruler, also known as spirit ruler and dragon hunting staff, has a history of 5,000 years in China and the West. The Cambridge Encyclopedia Dictionary translates it into a traditional method to explore water sources or veins with sticks, which is a method to detect underground objects such as underground water sources. Dragon hunting ruler is a necessary wardrobe tool for Mr. Feng Shui. Hold the handle to make the pointer rotate freely horizontally and make the pointer natural.