Bullet-style super-bright LED turn signal/marker lights really clean up the look of your bike Each features nine intensely bright LEDs in a cluster module for light output, amazing for its size (roughly 3/4" diameter at the light source) All parts are fully CNC-machined from 6061 T-6 billet aluminum May be rotated into virtually any upward-and-downward setting Dimensions: a little over 1" diameter, 2-3/8" long, and stand off the bike 1-1/2" Center-Mount Turn Signal Marker Lights can be mounted in almost any 5/16" or 8mm hole; wires feed through a pre-drilled hole in the mounting bolt Made in the U.S.A. If being used as turn signals, a load equalizer may be required Not DOT compliant. LED ASTRO CNTR RED BLACK