UPGRADED HEAVIER AND THICKER GRATE BARS The GE gas range center burner grates are made of matte enamel cast iron and it heavier than others, more durable and long-life lasting. The cast iron gas burner rack are less likely to scratch up your cookware, easy to clean. EXTRA PROTECTER The GE gas stove burner grate set provides a stable surface for cookware on the surface range oven burner and they hold heat and radiate it into your cookware sets. This makes cooking on them slightly more efficient. MATERIAL AND SIZE 1 pack 19.6 L high quality GE stove grate made of matte enamel cast iron. COMPATIBLE WITH GE FRIGIDAIRE RANGE SURFACE BURNER GRATE SET PARTS NUMBER WB31X24737, WB31X27150, JXGRATE1, PS11762590 and more.