The Blue Ox BXW4047 TrackPro Pin Kit replaces the pins on the TrackPro Weight Distribution Hitches. Compatible with the following TrackPro kits: BXW0650, BXW0850, BXW1050, BXW1350, BXW0851, BXW1051, and BXW1351. Includes two pins per package. The pins are zinc plated.