Feature:Made of fluorine rubber which has aging, heat, fuel and chemical resistance.Prevent leaks in plumbing, machinery, hydraulic and pneumatic repairs etc.Can be used across a wide temperature range from -30°C ~280 °C (-22℉~536℉).Have excellent resistance to mineral oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, fuels, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals.Specification:Color: BrownMaterial: Fluorine RubberHardness: 70A DurometerWorking Pressure: 0.3 barOuter Diameter: 15mmInner Diameter: 12mmCross-Section Diameter: 1.5mmPackage Contents:10 x Metric FKM O-Rings