This OSHA-format, flexible magnetic DANGER sign is a convenient way to send your hazmat safety message: FLAMMABLE MATERIALS NO OPEN FLAMES. It's easy to put up, move and take down, so it's great for temporary or long-term use. This sign is printed in color with a white background and English text. The magnetic backing holds tight with 12 lbs. per inch minimum pull at zero air gap. It resists UV, chemicals, abrasion and moisture, so you can use it indoors or out at temperatures from -15 to +160 F. ComplianceSigns magnetic signs are made in the USA and commonly used in industrial, commercial, public and private settings.