A. This bicycle crank cap screw is made of metal, specifically titanium alloy, and belongs to the titanium alloy DUB crank cap series specifications. It is compatible with the DUB chainrings of mountain bikes and road bikes, especially the Red Force cranks, and can achieve a perfect match, providing reliable connection and fixation for the chainring crank part of the bicycle. B. In terms of quality, the titanium alloy material has the characteristics of high strength and light weight. It is not only sturdy and durable, able to withstand various pressures and impacts during the riding process, ensuring the stable operation of the bicycle on different road conditions, but also light in weight, not adding too much extra burden to the bicycle, which helps to improve the smoothness and efficiency of riding. C. Its purpose is very clear. It is specially used for the installation and fixation of the bicycle crank cap, enabling the crank cap to be more firmly combined with the chainring. Whether it is for daily riding or professional bicycle races, this crank cap screw can play an important role, and it is a good choice for bicycle enthusiasts to maintain and upgrade their beloved bikes. Its appearance can effectively improve the overall performance and safety of the bicycle, bringing a better riding experience. D. It is mainly sold in regions such as Europe, South America, Southeast Asia, and North America, and has received positive feedback from consumers in various places.