This White Finish ,Full Frame Spacemaster System includes 8 placard panels in a single frame: Dangerous, Flammable Gas 2, Poison 6, Corrosive 8, Flammable 3, Oxidizer 5.1, Radioactive 7, Non-Flammable Gas 2 and Blank. Placards meet DOT specifications for transporting hazardous materials. Changing DOT placards when your load changes is as easy as the flip of a panel. Spacemaster eliminates the hassle and expense of replacing placards, so DOT compliance is virtually at your fingertips. Spacemaster frames are constructed of corrosion-resistant, fully formed rigid aluminum that provides superior durability, even under the toughest road conditions. Self-contained placard panels are constructed of aluminum alloy and mill roller coated with white acrylic paint. Panels lock in place with 4 double-riveted stainless steel pressure fasteners. Legends are silkscreened with UV inks to retard fading, chipping or peeling. Spacemaster White Finish Full Frame, 8-Legend Flip Placard System for Trailers is sold per each.