Description:brand new and high qualityFeatures:This stem extension bracket is made of a qualified aluminum alloy that is rugged, strong and durable.With this , you can easily mount a GPS or for Gopro camera on the handlebar.It is an extension bracket for Gopro, for garmin computers and sports cameras and other accessories.Easy to use.Specification:Type: Base Extension BracketMaterial: Aluminum alloyApplications: Suitable for garmin and for Gopro as well as Bryton and CateyeCompatible for garmin: 1000, 820, 810, , 520, , , 200For Bryton: R530 R330 R310 R100For Cateye: all modelsFeatures: Extension bracket, base, multi-function, solid, firm, durable, holder, accessoriesDimension: app.8x4.2x2cm/3.15x1.65x0.79inColor: Red, Black (optional)Quantity: 1 PcNote: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes:1 Pc x Base Extension Bracket