This mountain bike repair tool is a mini, colorful, all-in-one combination tool with an internal hexagon and a chain breaker for bicycles. It is made of special steel, which is sturdy and durable, able to withstand significant pressure during use and ensure long-term service. As a combo package, it integrates multiple functions, offering great convenience for cycling enthusiasts. Whether you encounter minor bike malfunctions during a ride or need to perform daily maintenance on your beloved bike, this set of tools can handle it with ease. With it, there's no need to carry multiple single-function tools, greatly reducing the burden of carrying. In terms of design, it adheres to the concept of being mini and portable. It's easy to carry and can be easily placed in a bike's tool bag without taking up much space. Meanwhile, this compact design is also aesthetically pleasing, with a delicate appearance that catches the eye. Both professional cyclists and amateur riding enthusiasts can experience the convenience and practicality it brings. Whether you're cycling on the vast grasslands of Africa, cruising through the city streets of Europe, or exploring the tropical rainforests of Southeast Asia, it will be your reliable cycling companion.