A. This cooling fan is specifically designed for motorcycles (150 - 250CC), all - terrain vehicles, and go - karts. Its unique square appearance design is not only visually distinctive but also allows for an efficient layout in limited spaces, enabling it to adapt well to various types of vehicles. B. In terms of usage, it plays an important role in the cooling function. For motorcycles, all - terrain vehicles, and go - karts, the engine generates a large amount of heat during operation. If the heat cannot be dissipated effectively in a timely manner, it will affect the vehicle's performance and service life. This cooling fan acts like a "cooling guard" for the vehicle, capable of quickly removing heat from the water tank and ensuring that the engine always operates at an appropriate working temperature, making the vehicle more stable and reliable during driving. C. Whether in the hot deserts of Africa, the rugged mountain roads of Europe, the complex road conditions in South America and Southeast Asia, the cold regions of North America and Northeast Asia, or the harsh environments in the Middle East, it can perform the cooling task well and ensure your cycling and driving.