Specifications:Product Name : Rubber MountsWeight: 4gColor:Black and SilverMaterial: rubber and metalType:DD(Flat Base Block)Height: 10 mm / 0.39 inchDiameter: 10 mm/0.39 inchFemale Thread Size : M4 x 4mm /M4 x 0.16"Metal Surface Treatment : Plated Zinc Package Content:1pcs x Rubber Mounts Product features:1.Universal Design - 0.39" x 0.39" rubber mount with M4 x 4mm Thread,Set of 1 pieces2.Durable, high durometer, resilient, anti-vibration, provide excellent noise reduction and vibration reduction.3.They absorb vibrations caused by appliances, reduces noise and structural damage caused by these vibrations.Adapt to many kinds of motors make machine more stable supports dynamic performance and stability.4.Suitable for: The vibrating body is suitable for shock proof products, automobile industry, heavy machinery, electronic equipment, instrument and meter, generator.5.Widely used in air compressors,Fitness equipment, air conditioning, bicycle, engine, gasoline, water pumps; as a damping element.