36 X 24 Inches Plastic (Dial Safe - This Area Has Worked ______ Days Without A Lost Time Accident --- The Previous Record Was ____ Days Do Your Part! Help Make A New Record (W/ Dial Safe Numbers And Brass Grommets) Lost Time Accident signs are made of aluminum, 36"x24" (Inches) and have a dry erase area for dry markers or magnetic area for magnetic numerals. Don't see it - We can make it. We will customize lost time accident signs for you. Fill out a simple online form by clicking here.. Alternatively, you can call toll-free 1-866-753-6257 or email customerservice@tuffrhino.com  for a custom quote.