Description Warning Biohazard Aluminum Sign   Corner Radius:  1/2″ Corners: Standard federal radius Finish: Back – Painted white Face – High quality vinyl printed with premium solvent inks and then laminated with a UV protective film Hole Placement:  All four corners Material: Aluminum Thickness: .040   The black outline around the parameter of the sign is for illustrative purposes to show the edge of the product and is not part of the sign.