Play it safe when transporting Dangerous Goods with Labelmasters UN 1993 Combustible Liquid Placards. Pre-printed with the four-digit UN Number, these DOT placards are what you need for shipping Flammable Liquids, N.O.S, Fuel Oil and meeting the requirements of 49 CFR 172.500 for domestic and international shipments of hazardous materials by highway, rail and water. They are printed on super-tough rigid vinyl that is commonly used for multiple trips and in harsh weather conditions. Recommended for us in Slidemaster holders, these Hazard Class 3 placards measure 273 x 273mm and are sold in packs of 25 or cases of 500.