"Acrylonitrile butadiene styrene (A.B.S.) is virgin grade extruded plastic sheet that is very tough and rigid with great impact strength and chemical resistance. Haircell pattern texture finish on one side smooth on the other A.B.S. stock sheets are black opaque color. Outdoor use is limited. The 6 sizes are 48""x96"" with varying thickness of .040"" all the way up to .236"""