For any feng shui students and practitioners, a good Lo Pan is essential for performing their feng shui work well. The Lo Pan is an ancient Chinese compass containing many complicate formula for measuring the directional influences. These formula come from different schools and different systems of practices. For non Chinese students, the instrument becomes even more difficult to handle as the markings are all engraved in Chinese. The Raymond Lo 3 Period and 3 Harmony Lo Pan is specially designed for easy understanding and handling of this very complicated instrument. It is clear, precise, and contains the essential teachings of the 2 major feng shui schools - San Yuen and San Ke and it is adequate for measuring both Yang House and Yin House. The Lo Pan is also bi-lingual with English markings, and it comes with a detailed Instruction Manual explaining the function of each ring of information on the Lo Pan in English.