Oklahoma Joe's 3388454P06 Smoker Sealer Gasket, BlackSeal your smoking chamber or firebox with the Oklahoma Joe's gasket seal. Measuring fifteen feet in length, you can count on this to prevent smoke from leaking out of your smoke chamber or firebox, while withstanding intense heat. Highlights: Color: Black Material: Synthetic Rubber 15 feet length can be cut to fit your smoker Seal smoking chamber or firebox to prevent smoker from leaking out Fiber wool mater withstands high temperatures