Aluminum Alloy Bicycle Computer Holder StemTop Cap Mount Bracket Support Stopwatch GPS Speedometer MTB Bike AccessoriesRR7240 Description: 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.Color:red/blue/black/golden/titanium Material: Aluminum Alloy Size:Suitable for stem tube diameter about 28.6mm Packing:Package included:1Bicycle Computer HolderSet: 1 x Stem Top Cap for Garmin 1 x Adapter for Cateye 1 x Adapter for Bryton 2 x Small Screws About Color The picture shows the real items without any special processing. But color and brightness may differ a little due to different computer monitors or other factors. About Size : Please allow 1-3cm differs due to manual measurement and different batchs of products. Please understand. Make sure you don't mind before you bid. Your understanding will be highly appreciated! enjoy your good time!