Fangrui Product Details Features: The Of This Stopwatch Is That The Interface Is Located In The Stand Of The Stopwatch In This Way, The Load Of The Interface Can Be Greatly Increased, Which Is A Common Two To Three Times The Load Of The Integrated Computer Bracket Suitable For 7.5 To 45mm Center Distance Mounting Screw Position (the Handlebar Hole Is Centered, The Computer Holder Is Centered) Precautions: 1. This Set Of Brackets Is Not Equipped With Light Clips 2. This Set Of Brackets Is Equipped With Three 304 Stainless Steel Screws, Two Short Are Used To Fix The Bracket To The Lower Part Of The Handle, And The Other Length Is Used For The Interface 3. Please Pay Attention When Installing The Long Screw On The Interface Direction, The Screw Should Enter From The Non-threaded Side. Weight: 38 Grams Of Single Bracket + Screw Product Size: 143x36x30mm Note: This Computer Bracket Is Not Equipped With Light Clips For Base Universal Igps Blackbird Walker Computer For Garmin1000, 820, 810, 800, 520, 510, 500, 200 Colour:blac