Origin-8's Eyelet Stub Light Mount is an ingenious way to easily mount a light (or other accessory) to any bicycle frame with standard rack/fender eyelets. The Stub is made of light and tough 6061 aluminum tubing with an outside diameter of 26mm and an overall length of 46mm. It simply bolts to the eyelet with its included 5mm screw. There's a press-fit cap on the end to seal it.