Mr. Gasket, Ultra Seal gasket material. 1/16" (1.6mm)1 16" (1. 6mm) thick. On a 6" x 24" (15cm x 61cm) roll. Black color Metal mesh reinforced Hard to bend Manufactured from high temperature steel core graphite faced exhaust material Expanded steel core provides stability and maximum torque retention to eliminate gasket failure Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head Conforms to and seals minor surface