10 pieces of black rubber oil seals O-ring seal, effective material, oil resistance, abrasion resistance and water resistant seal.O-ring seal are circular-shaped rings within the industry to prevent the final or leakage of liquid or gas in an application.Suitable for both static and dynamic sealing.This oil seal O is product of rubber, around cross-section, easy to install.Applications: automotive, electric equipment, engineering, industry, construction, household, other fields.Product Name: Seal O-ringMaterial: rubberOuter diameter: 16mm / 0.63 inchInner diameter: 11mm / 0.43 inchThickness: 2.5mm / 0.098 inchColor: BlackPackage Contents:10 x o-rings gasketets washersOnly the above equipment content, different merchandise are usually not included.Note: Light shooting and varied exhibits may cause the color of the article within the photo a little bit diversified from the genuine thing. The size allowed error is +/- 1-3cm.