These signs are made with hand-applied glossy vinyl art on 0.040″ gauge aluminum with hand-rounded corners to prevent injury. Two 3/16″ (4.76 mm) centered holes on the top and bottom 7/16″ (1.11 cm) away from the edges have been punched for easy installation. These waterproof and rust-proof signs can be displayed indoors or outdoors. Vinyl is rated for up to 6 years of outdoor durability. Graphics designed and cut in-house. Slight variability in size and alignment, up to 1/8″ (3.18 mm), and a slight bend in hand-rounded corners are to be expected.