A. This bicycle speedometer bracket extension fixing screw set is made of metal lamp clip material, which has a good quality. The metal material is durable and can withstand various vibrations and impacts during daily cycling. It is not easily damaged and can provide long - term stable use for cycling. B. In terms of specifications, it is a screw set specially designed for speedometer brackets and is suitable for stem - type extension seat brackets. It can be installed quickly and easily, and can accurately match the stem - type extension seat bracket of the bicycle, providing a stable installation position for the bicycle speedometer. C. In terms of use, it can effectively extend the installation position of the bicycle speedometer, making it more convenient for cyclists to view the data on the speedometer. Whether it is a professional cycling enthusiast on a long - distance ride or an ordinary cyclist for daily commuting, it can bring a lot of convenience and help cyclists better master cycling information. D. It is suitable for cycling in regions such as Europe, South America, Southeast Asia, North America, and Northeast Asia, and is a practical item to enhance the cycling experience.