Safety Signs identify and indicate potential, type and degree of hazards that may lead to accidental injury or property damage. Aluminum signs withstand washdowns, harsh elements, abusive conditions and feature good chemical, abrasion and impact resistance. Aluminum is excellent for indoor and outdoor usage, making it ideal for a wide variety of industrial-strength applications. Accuform® Safety Sign, Symbol/Text Legend, Legend: EXTINGUISHER DO NOT BLOCK/EXTINGUIDOR NO OBSTRUIR (DOWN ARROW) (GRAPHIC), Aluminum, Through Hole Mounting, 18 in Height, 4 in Width, Black/Red/White Legend/Background