The image is a photograph of a wooden ruler in a black frame. The ruler is rectangular in shape and appears to be made of a light-colored wood. The wood has a smooth surface and is slightly curved at the edges. On the ruler, there are several lines of text written in black ink, which appear to be Chinese characters. The text is written in a traditional Chinese script and is arranged in a horizontal line. The frame is made of black wood and is placed on a white surface.