Specifications:Material: Fluorine RubberColor: GreenOuter Diameter: 15mm / 0.59"Inner Diameter: 12mm / 0.47"Cross-Section Diameter: 1.5mm / 0.06" Package Contents:5 x Fluorine Rubber O Rings Descriptions:1.Round shape fluorine rubber O-ring, has a hardness of 70A and is designed for use in a wide variety of sealing applications. It can be used over a wide temperature range from -22 (-30 ) to 302 (150 ).2.Durable fluorine rubber with resistance to heat, oil, aging, abrasion, ozone, fuel and chemical; Strong sealing and good airtightness.3.Fluorine rubber O-ring provides sealing and prevents leaking for a wide range of applications such as plumbing, machinery, hydraulic and pneumatic repairs, etc.