... : black 4. quick release Bicycle light Aluminum Mount instructions:* the mount adapt FEREI light such as P408N, F-V,F- ... side nut screw and inset the light through the hole . * Bicycle bar mount: Loose another nut screw down , ... it can be easy to mount on the bar , use the prepared 2 pieces ... to 34mm Weight: 106g Easy to use , light weight , multi-applications Bicycle light Aluminum Mount