Warp Bros SSG-3034 Single Strength Flex-O-Glaze, 30-Inch by 34-Inch Excellent clarity, won't yellow or become brittle Withstands blows that would shatter normal glass Certified by the Safety Glazing Certification Council and meets ANSI Z97.1 impact standards and complies with ASTM-D-4802 Single strength meets ASTM C-1036-01 and BOCA standards (.085" to .101") and can be used in most replacement applications