The image shows a small metal object on display in a museum. The object appears to be made of metal and has a greenish-grey color. It has two horizontal bars on either side of the top bar, with a small hole in the center. The bars are connected by two white wheels at the bottom. The legs of the object are also green and appear to be old and weathered. In the background, there are several small figurines of animals on display. On the right side, there is a small sign with Chinese characters written on it.