Convex mirrors with automotive-quality glass6061 T-6 aluminum CNC-machined billet constructionBlack anodized or silver finish with stainless hardwareRubber mounted to reduce vibrationWill fit most handlebar/clip-ons with an outer diameter of 22 mm (7/8") (requires 10 mm (3/8") of bare bar outboard of the grip/throttle assembly)Optional internal mirror adapter kit allows mirror to mount to internal end of smooth bore, hollow handlebars with i.d. as small as 12mm (0.475") and as large as 19mm (0.750")Blindsight mirror intended to be used in conjunction with left-side mirror or stock mirrors to help reveal blind spotsLS (lane splitter) version is retractable/foldingSold eachMade in the U.S.A.