Health and safety sign with “Danger men working overhead” written in black on a yellow background which indicates a warning of a possible hazard. · · · Semi rigid sign · · Black font on a yellow background · · Warns people of the danger of working overhead. · · The sign can help to deter people from entering areas where there is work being done overhead. · · The sign can help to create a more safe and healthy environment for everyone. · · Clear and visible message: The sign is easy to understand and see.