2. Hold the handle of the figure-eight ring and turn the figure-eight ring for two weeks, so that the thread can be screwed on.
3. Rotate clockwise or counterclockwise. Then the knot of the double hook thread passes through the sub-coil wrapped in the eight-character ring, and finally the thread is tightened as a whole.
4. In this way, the eight-ring knot method of sub-line connection is completed.