Click to expand Tap to zoom DANGER - NO SMOKING by Fast Safety Decals Sale $19.99 12" x 18" - $19.99 Size 12" x 18" 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. DANGER: NO SMOKING .040 aluminum Commonly used to warn of workplace hazards Square corners.