Our folding foot pegs fit our mounts and also traditional factory Harley mounts that use a "D" spring washer. These folding foot pegs attach with a 5/16'' bolt. They are 1-1/4'' diameter and about 5'' long from the pivot hole to the end. These folding foot pegs are machined from 6061 T-6 Billet Aluminum. All Accutronix Motorcycle Products are proudly made in Phoenix Arizona, USA (Sold in Pairs)