REESE Towpower Hitch Pin & Clip with PVC Grip - 5/8" - 5/8" pin diameter - fits most 2" receivers - brand new with package - $10 firm PRODUCT DESCRIPTION: Reese Towpower 5/8 in. pin and clip is designed to fit Class III / IV, Reese 33, 36, 36, 37, 44, and 51 series hitches with 2 in. hitch boxes. This pin is 5/8 in. in Dia and includes the spring cotter pin. The PVC comfort grip is designed to protect the hands and allow for a better grip while inserting or removing the pin and clip.