Designed to match Tracker, Chrono, Vintage and Nostalgia components CNC machined from billet aluminum Available in Machine Ops™ Machine Ops™, RSD's newest finish, is a fusion of textured natural aluminum and detailed machining that exposes the true beauty of their aluminum alloy; they then dip the fresh machined parts in a slick clear anodize to protect the surface while keeping its raw aesthetic protected All have 3/4 inch(es) wide mount Mounting hardware included DOT approved H-4 Bulb has twice the illumination of standard sealed beams Made in the U.S.A.