The Feng Shui compass is an ancient tool with complex Feng Shui compass is also called Lo-Pan, and is used to define the Bagua of a home or office in order to access the following. Taking an accurate compass reading is the most important part of a Feng Shui consultation and without one, you cannot practice authentic and traditional Feng Shui. Compass is 5" x 5". Hanging tip to tassel is 20".