6061 aluminum construction. -etched. Includes hardware. Regular shifter pegs measure 2.125in. L x 1in. diameter. Shorty shifter pegs measure 1.125in. L x 1in. diameter. Fits all fits H-D models with 5/16in.-24 thread. Includes quality 12-point heat-treated special 300 alloy stanless steel bolt with polished finish. Manufactured by ARP to ThrashinGÇÖs exact specifications. Sold each. Made In the U.S.A..