One jig that can do it all and do it all at once! With the Complete Tower System you can fletch 3 vanes of almost any size vane in three different configurations all at once. It comes with 3 sets of arms: 3° Helical for up to 2.25" vanes, 2° Offset to fletch up to 4" vanes, and Straight for up to 4" vanes. Designed to fletch crossbow arrows three vanes at a time, either 2° Offset, Straight or 3° Helical.