7.5 to 45mm center distance Mounting screw position (handlebar hole centered, stopwatch stand centered) The matching screw is 304 stainless steel Note:This stopwatch bracket is not equipped with light clips Universal IGPS Blackbird Walker Computer for Dock Compatible with for GARMIN1000, 820, 810, 800, 520, 510, 500, 200 supported models:for R530/R330/R310/R100 Compatible with all action cameras and light clips compatible with for Mountain Dog, for camera mount Colour:Black Material:6061 aluminum alloy Size:143x36x30mm Package Contents: 1 set * brackets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.