SmartSign Aluminum Sign, Legend "Danger: High Voltage Authorized Personnel Only", 7" high x 10" wide, Black/Red on White Legend "DANGER HIGH VOLTAGE AUTHORIZED PERSONNEL ONLY" Lyle Signs supplies your sign with radius corners for safety and holes punched one in each corner for easy installation This Lyle Safety sign is designed to last up to 5 years for outdoor applications and longer for indoor applications Lyle Safety signs meet OSHA 1910.145 requirements This Lyle Safety sign is abrasive and chemical resistant