FG knot assist tool.A convenient tool for comfortably using the "System Stick" outside the field.Easy setting just by sandwiching PE line!An optimal weight design that has been calculated thoroughly to accommodate a wide range of line numbers from 0.6 to 5 is adopted.With the optimum tension applied to the PE line, the leader can be woven using both hands.Of course, the system weight can also be used as a single unit by attaching it directly to the PE line from the rod dip or PE line from the reel.