The image shows a large, cylindrical object hanging from the ceiling of a building. The object appears to be made of metal and has two large wheels on either side. It is suspended from a rope that is tied in a knot at the top. The rope is secured to the ceiling with two wooden poles. Below the rope, there is a yellow plaque with Chinese characters written on it. The background of the image is a gray brick wall with a small window on the left side.