Description:Inner Diameter:65mmOuter Diameter:82mmThickness: 18mm Universal fit for most car vehicle.This gasket is often used to prevent exhaust leaks between the cast-iron exhaust manifold and the exhaust pipe of car.Prevent the engine vibration transmitted to car sound around up and down, effectively improve the vibration of the cockpit experiencePackage Include:2 x Exhaust Donut Gasket.