One Side, 20 mil - 6" ruler, made of plastic. Four color process printing directly on PremiumEDGE (TM) plastic gives your art an incomparable vibrancy and crispness. Stock or custom die cut around your artwork. Manufactured in America so your delivery is 15-20 days from art approval. Super gloss dry erase finish. Stock die cut 2" x 6 1/4" with rounded corners.