20 pieces of black rubber oil, O rings, high quality material, oil resistance, abrasion resistance and waterproof seal.O-rings are donut-shaped rings in the industry for preventing liquid or gas from leakage or leaking in an application.Suitable for both static and dynamic sealing.Product Name: O RingMaterial: rubberColor: BlackOuter diameter: 38mm / 1.5 inchInner diameter: 32mm / 1.3 inchThickness: 3mm / 0.1 inchPackage Included:20 x o-ring gasket washersOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
