This part is part of a design change by Penn affecting the BATTLE reels BTL5000, BTL6000, BTL7000 and BTL8000.
Please read design change notes linked below in the "Similar Products" section, or go back to the parts list and click on the design change notes there at the top of the list.
Be very careful to order the correct parts for your reel!
SG to BTL bail conversion info
35-5000BTL roller and
35A-5000BTL bearing can also be used on the
SG5000, SG6000, SG7000 and SG8000 bail conversion to BTL bails
See
Conversion Info SG to BTL Bail Wires