Thin and flexible 10-mil poly-based material contains no wood-based, paper content, and is more durable than traditional cardstock Tear-resistant, waterproof, and will not crack, distort, or shrink Scuff-resistant, matte surface is easy to write on with pen or marker Top has 3/8" plain hole Complies with OSHA 29 CFR 1910.145 and ANSI Z535 requirements Actual sign may appear slightly different vs. provided image