The PESW-A-8Y Pre-Printed ISO Warning Symbol Card is constructed from a laminated material that protects the legend from abrasion and chemicals, resists UV light, chemical atmosphere, and abrasion; excellent life and adhesion properties. Legend caution - laser beam symbol. Vinyl. 0.43" x 0.41" (10.92 mm x 10.41 mm). Color Yellow. Legend: Black. 10 markers per card. 10 cards per package.