This NFPA chemical hazard sign is manufactured with four 0.20-inch mounting holes for easy installation. It is printed with bold colors on a white background to make your NFPA hazard rating clear to emergency responders. This sign is sunlight, chemical, abrasion, and moisture resistant and is suitable for use at temperatures from -40 to +176 F. ComplianceSigns.comsigns and labels are made in the USA and commonly used in industrial, commercial, public and private settings.