Things Joy advocates the service concept of "a priori foot, then paired shoes, and customized typing is more scientific". Professor Wang Bo, a domestic sports biomechanics and orthopedic expert, uses German proprioception technology to adjust the foot Benign stimulation of proprioceptors prevents and improves common foot problems in children. Parents can conduct online intelligent foot tests for their children through their mobile phones. They can match their shoes scientifically according to the foot test data of different children, and provide one-to-one foot exercise improvement solutions.