How is the fishing line tied to the red line on the head of the fishing rod?

1. Tie a knot at the end of the fishing line to form a fish circle. The knotted fish circle cannot be moved to become larger or smaller, as shown in the figure below.

2. Put your thumb and forefinger into the fish roll, as shown in the figure below.

3. Press a section of fishing line with your thumb and forefinger respectively, and then recoil and pull out the fishing line to form a slipknot, as shown in the figure below.

4. Put the rod head into the slipknot, so that the slipknot covers the rod head, as shown in the figure below.

5. Tighten the fishing line, and the button will be buckled on the snake knot at the tip of the pole, so that the fishing line is connected with the tip of the pole. When fishing, just loosen the button and take it off, and wrap it around the foam board, as shown in the figure below.