Billet 6061 aluminum. Drilled with 1/2" hole for internal wiring. Works with any standard 1" handlebar. Sold in pairs with top clamp and 5/16-18 x 7/8" hardware. Base hole tapped for standard 1/2-13 mounting bolts (bolts not included). Fits on all models with 3-1/2" center-on-center riser spacing, including most OE Harley-Davidsons. Made in the U.S.A..
