Machined from Billet 6061-T6 Aluminum. Fully integrated CNC Machine Sculpted Aero-design. Easy replacement glass retaining system. Clamp to handlebar or clip-on design. CRG LS folding /retractable feature for lane-splitting or narrow space storage. Convex automotive quality mirror glass. Extension elbow is reversible for left and right side mounting. Made in the U.S.A.. Optional Billet internal adapter for mounting on virtually any bar.