How to tie the fish line figure 8 knot?

Double-stranded wire is a single-stranded connection, and the thread head needs to be threaded twice.

Fishing rod is a kind of fishing tool, slender and knotted. It usually has a handle, which tapers from the handle to the back end. Fishing line is used to connect the hook and bait. Fishing rod was originally a tool for human beings to make a living by fishing. Now it is usually used for fishing leisure in outdoor sports, and also for some sports or outdoor competitions in fishing competitions.