NMC N291RB OSHA Sign, Legend "NOTICE - KEEP DOOR CLOSED AT ALL TIMES" with Graphic, 14" Length x 10" Height, Rigid Plastic, Black/Blue on White Header "NOTICE" and Legend "KEEP DOOR CLOSED AT ALL TIMES" with Graphic Ideal for long lasting indoor and outdoor use Made of 0.050 rigid plastic Good chemical resistance Measures 14-inches length by 10-inches height