Material: Plastic steel Size:Install handlebar diameter 31.8mm/12.52in,Short length: 9cm/3.54in, Long length 11cm/4.33in. Computer applicable model: For Blackbird: IGS216/ IGS20/ IGS50/ IGS60/ BB10 For Garmin : edge 200/500/800 /520 /810/ 1000m/20/25 For Magene:206/406/606 For G/G+ Color:As shown in the figure Product features: 1. Versatile: This computer mount is suitable for multiple brands of computers, for Garmin, for Magne, for XOSS and for Blackbird, with strong compatibility and practicality. 2. Easy installation: This computer mount is easy to install, taking only a few seconds to complete. 3. High quality: Made of plastic steel material, this computer mount is sturdy and can be used for a long time, ensuring that your speedometer is safely and stably fixed on the handlebar. 4. Good stability: This computer mount has an excellent design that greatly enhances stability, avoiding damage caused by the shaking of the speedometer during cycling. Package includes: 1 pc Bike Computer Holder 1 pc Installation tool