This tire socket wrench is made of high-quality seamless steel tube, No. 45 carbon steel, with a hardness of 20 degrees. After quenching, the hardness reaches 40 degrees. The surface is chrome-plated. The socket can be used both front and back. There are 4 specifications (17-19 and 21-23). In addition, the surface is polished chrome-plated, the steel pole can be extended by 90%, saving 50% of effort, and is equipped with a non-slip handle for comfortable holding. This wrench is not only suitable for tire replacement, but can also be used for the repair and maintenance of other mechanical equipment. It is a multifunctional and practical tool.