Note: The color of the item may vary slightly due to photography and your own computerMainly used in air compressors, engine, gasoline, water pumps; welding machine and other equipment as a damping elementMaterial:RubberDiameter:approx.15mm/0.59inchHeight:approx.15mm (without 2 ends thread )/0.59inchThread diameter:approx.5mm/0.2 inchLength:approx.38.5mm/1.51inchColor:Black+SilverWeight:47gPackage Include:5 x Double Screw Silentblock About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.