Polyethylene "Caution" tape like this is crucial for maintaining safety in tough industrial environments like work zones and construction sites.0mil 3 inch widths allow for a large, readable print size for safety messaging, and 1000 foot lengths mean this message caution tape can cover plenty of area within high-risk work zones. Bright, high visibility colors like red or standard yellow with black lettering mean this tape messaging is highly visible and effective for raising awareness in areas where caution is needed. Caution Tape,Yellow CAUTION NO PARKING 1000ft.