Multi Use:
This item is used on multiple models.
Handle Design Change Notes
The 59-600 C RING is used on the original PENN 25-600 and 91-600 (BRASS) downrigger knob and knob shaft to secure them together
It is NOT used with the newer 25-600 and 91-600 (SS) as made by Troll-Master, as they changed the 25/91 design slightly instead to eliminate the need for the clip.