Polished aluminum. For 22mm handlebars. Allows the Motoscope mini to be mounted on the triple clamps of superbikes with a hole spacing of 33 mm x 85 mm. The msm Metric Handle Bar Top Clamp 22mm comes with 5 LED indicator lights in Red, Green and Blue. The Outer 2 LEDs are amber for turn signal use. The LED indicator lights come with integrated series resistors. Includes approx. 50cm connector cable.