Keep your workers informed and safe. Available with your choice of wording at no extra charge. .040 gauge aluminum with baked enamel finish and four corner holes. Type your choice of wording in the Comments section on your order. Some common wordings include - but are not limited to - "Men Working", "Hard Hat Area", "High Voltage", "Keep Out", "Hazardous Area" As these are custom signs - made to order - please allow 4-5 days before shipping. OSHA Approved Safety Signs - 14"x 20" with Danger Header 1420-AD$15.95 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.