MTB Road Bike Bicycle Computer Holder Stem Top Cap Cycling Aluminium Alloy Stopwatch GPS Speedometer Mount Bracket SupportFeature: 1. The stem cap is made of high quality aluminum alloy, durable and long service life. 2. You can be installed the top cap on your bicycle pole, it can install different types of computers, easy to install and easy to use. 3. It is suitable for the diameter of the stem tube about 28.6 mm. 4. Suitable for cat eye computers for Garmin, for viGPSPORT, for Blackbird and for Bryton. 5. Great accessories for road bicycles and mountain bikes. Specification: Materials: aluminum alloy and plastic Suitable for valve stem diameter: About 28.6 mm / 1.1 inches Suitable model: for Garmin, for viGPSPORT, for Blackbird, for Cat Eye, for Bryton Process: CNC anode All bicycles with 28.6mm/1.1 inches in diameter on the front fork Product size: 37*37*10mm/1.45*1.45*0.39"'""'" Weight: 24 g Color: Black, Red, Gold, Blue, Silver Note: Please allow slight size differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.1 x Stem Top Cap for Garmin 1 x Adapter for Cateye 1 x Adapter for Bryton 2 x Small Screws