4in:4.33*4.33in Weight:213g 6in:5.9*5.9in Weight:403g 7in:7.87*7.87in Weight:690g 9in:9*9in Weight:851g 【Luo Pan】 There are a total of four sizes, 4/6/7/9 in.On the compass, there are Yin and Yang, Eight Trigrams, Heavenly Stems, Earthly Branches, Twenty Four Solar Terms, Sixty Four Trigrams, Starry Symbols, etc. The compass, also known as the Compass, encompasses all things; The interweaving of horizontal and vertical directions in all directions represents the meaning of longitude and latitude in heaven and earth. 【Usage】This feng shui compass is different from a regular compass. It not only serves as a directional indicator, but also a very practical feng shui instrument. Chinese ancient feng shui masters used it to measure distance and time, and it holds a very important position in feng shui academia. 【Great Invention】The compass is an ancient compass, one of the the Four Great Inventions in ancient China, also known as the celestial pivot and the earth pivot. The Book of Rites of Zhou states: "The cardinal axis of heaven, earth, and human beings is connected with heaven and earth to form a section, in order to determine the correctness of the four seasons." This indicates that the compass at that time already had knowledge in astronomy, geography, and other fields, and had high scientific and artistic value. 【 New Residence Amulet】Before moving into a new house, a compass can be used to gather prosperity, popularity, and wealth. Usage: A large compass with built-in grains or rice is placed in the center of the house or living room, and then the compass is lightly placed on top of the grains or rice. The four corners of the outer compass align with the direction of the four corners of the house or living room, and the inner compass is rotated to align the pointers to the north and south. This method not only helps to stabilize and secure the house, but also to attract people and gather wealth for the new house.