The image shows a set of four blue and white signs on a gray concrete wall. The signs are rectangular in shape and have Chinese characters written on them. The first sign on the top left reads "2", the second reads "3", and the third reads "4". The signs also have numbers written in both English and Chinese. The wall appears to be old and weathered, with peeling paint and cracks visible on the surface. There is a metal pipe on the right side of the image.