TAPE RED 3"x1000' DO NOT ENTER. Our barrier tape is made of very durable polyethylene, perfect for hazardous areas. Its material is even waterproof, supporting wet and windy areas. It's a quick and easy way to alert people to dangers or dangerous situations. In addition, its striking color contrasts sharply with bold black text, which makes it very noticeable when entering an area, which, for example, you have to be careful about.