1. This mountain bike repair tool is a mini, colorful all-in-one combination tool with hex keys and a bicycle chain wrench. It is made of special steel, which is sturdy and durable. It can withstand relatively large pressure during use, ensuring long-term use. 2. As a combination set, it integrates multiple functions, providing great convenience for cycling enthusiasts. Whether you encounter minor bike malfunctions during a ride or need to perform daily maintenance on your beloved bicycle, this set of tools can handle it easily. With it, there's no need to carry multiple single-function tools, greatly reducing the carrying burden. 3. In terms of design, it follows the concept of being mini and portable. It is easy to carry and can be easily placed in a bike tool bag without taking up too much space. At the same time, this compact design is also aesthetically pleasing, with an exquisite appearance that catches the eye. Both professional cyclists and amateur cycling enthusiasts can experience the convenience and practicality it brings. 4. Whether you're cycling on the vast grasslands of Africa, navigating the urban streets of Europe, or exploring the tropical rainforests of Southeast Asia, it will be your reliable cycling companion.