Extended from spring action/01. The spring here is not an element of installation, which is always placed in a fixed space, but "spring shoes" that can be worn and moved everywhere. Two artists wore them walking around in Taipei County. The spring swings origianlly in a specific site, but now it becomes a medium that is used to test for different surfaces of the earth. By the spring, the artist hopes that his art can be expanded into a real environment.