Nitrile (beater-add, NV-512); 3-Year Full Warranty. Brand New gasket with guaranteed fit and function. All Materials and Manufacturing Sourced and MADE IN USA. Listing picture depicts Nitrile Gasket material. This gasket material is treated chemically to seal against oils, water, alcohol, grease, air, gasoline and solvents.If you need any assistance, feel free to ask. Fits: Honda Motorcycle 1978 GL1000 A - GOLD WING Clutch CoverHonda Motorcycle 1979 GL1000 A - GOLD WING Clutch CoverHonda Motorcycle Models with no year GL1000 A Kick Starter / Clutch Cover / Rear CaseHonda Motorcycle 1976 GL1000LTD A - GOLD WING LIMITED EDITION Kick Starter / Clutch Cover / Rear CaseHonda Motorcycle 1976 GL1000 A - GOLD WING Kick Starter / Clutch Cover / Rear CaseHonda Motorcycle 1977 GL1000 A - GOLD WING Kick Starter / Clutch Cover / Rear Case