1.Circular in shape, round in cross-section. Can be used across a wide temperature range from -30°C ~280 °C (-22 ~536 ).2.Fluorine rubber has heat, fuel, and chemical resistance.3.This O-ring is made of green Fluorine rubber, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.4.O-rings commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in faucets, flanges, valves, and various cylinders.5.Suitable for door, window, electric appliance, bearing, pump, home appliances, fittings, A/C manifold and more.Specifications:Outside Diameter: 115mm / 4.53-inchInner Diameter: 108.8mm / 4.28-inchCross-Section Diameter: 3.1mm / 0.12-inchPackage Content: 1 x O-Ring