Worth Buying! This mount attaches to the bars, and places in front of your stem plate. So, your ride data is easier to view, and dare we say it, the mount makes your setup look really pro Features: This stem extension mount is made of qualified aluminum alloy, solid, firm and to use. Direct wide slot user-friendly design, suitable for different specifications of the installation. Easy to install, suitable for any stem. It is a extension mount holder for computer and sports camera and other accessories. Great accessory for cycling enthusiasts. Specifications: Material: Aluminum Alloy Color: Black, Red (optional) Suitable for & for Bryton & for Cateye Size: Approx. 86 x 45 x 33 x 36mm/3.3 x 1.7 x 1.3 x 1.4inch Weight: Approx. 80g Packing List: 1 x Bike Extension Bracket 1 x Mounting Base for Bryton 1 x Mounting Base for Cateye 2 x Screws 2 x Gaskets 2 x Screw Retaining Rings