This machine is mainly used for testing the torsional strength of various finished shoes. The torsional performance of finished shoes is related to the softness and hardness of the sole, the quality of the upper material, and the design of the process. It is one of the important indicators related to the comfort of finished shoes, especially for some sports shoes, which have the characteristics of frequent starting, emergency stopping, and turning, and have high requirements for the flexibility of the shoes, which requires the finished shoes to have good torsional performance.