Safety notice boards are signs used for the purpose of confirming safety. They are used in a wide range of venues, such as workplaces, public institutions, and commercial facilities. They use letters and symbols to easily instruct on dangerous locations and prompt caution. JIS standards specify the standard colors used for bulletin boards, so select colors that match the content of the instructions, such as red for prohibited and yellow for caution. For traffic-related products, pole stand types are mainly used for aluminum or steel signs that instruct speed limit, stop, and the like. Electric-related products include product liability warning stickers and switch covers to prevent accidental activation of switches. There are also a variety of other products used according to the application, such as signs that indicate where waste is stored and audio signs that call attention audibly.