Features:This stem extension mount is made of qualified aluminum alloy, solid, firm and durable to use.Direct wide slot user-friendly design, suitable for different specifications of the installation.Easy to install, suitable for any bicycle's stem.It is a extension mount holder for garmin computer and sports camera and other accessories.Great accessory for cycling enthusiasts.Specifications:Condition: 100% Brand New and High QualityMaterial: Aluminum AlloyColor: Black, Red (optional)Suitable for Garmin & for Bryton & for CateyeSize: Approx. 74 x 45 x 33 x 36mm/2.9 x 1.7 x 1.3 x 1.4inchWeight: Approx. 80gPacking List:1 x Bike Extension Bracket1 x Mounting Base for Bryton1 x Mounting Base for Cateye2 x Screws2 x Gaskets2 x Screw Retaining RingsNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..