The "Gold Finger" brake lever made by Dia Compe. A great single finger brake lever made for everyday use. The hinged clamp makes it easy to instal or remove without having to take off the grips. The clamp area on this is 25.4mm and will fit most handlebars. Available in anodized Black, anodized Silver, anodized Silver/Black and anodized White as a pair, single left or right lever.