Convex mirrors with automotive-quality glass, 6061 T-6 aluminum CNC-machined billet construction, Rubber-mounted to reduce vibration, Will fit most handlebar/clip-ons with an outer diameter of 7/8" (requires 3/8" of bare bar outboard of the grip/throttle assembly), Blindsight mirror intended to be used in conjunction with left-side mirror or stock mirrors to help reveal blind spots, LS (lane splitter) version is retractable/folding, Made in the U.S.A.