ABRASION/CRUSH RESISTANT - Graphite impregnation/lubrication makes gasketing more abrasion resistant. GRAPHITE IMPREGNATED FIBERGLASS - Less likely to get stuck with creosote ensuring a better and more consistent seal. BLACK GASKET - Used by leading stove manufacturers due to better aesthetics and higher performance. PROFESSIONAL STRENGTH CEMENT - Withstands 2000-degrees Farenheit. Adheres to all types of stoves from steel to cast iron. MADE IN USA - Quality manufactured in the United States. Midwest Hearth gasket kits combine our graphite impregnated fiberglass gaskets with a high quality gasket cement. Please consult the owner's manual for your appliance to determine the correct gasket size needed.