Prohibition signage specifies behaviour or actions which are not permitted. The red circle border and slash is illustrated in red placed over the black action symbol, signage text is black on a white background. You will always find the right prohibition safety signage at RSEA Safety Online with our variety of options including poly, metal, stickers & more. Can't find what you need? We also create custom signage in different sizes, colours & materials. Call us on 132 100 for more information.