4x silent block rubber buffer M6 M8 vibration damper threaded metal bumpers [Excellent shock absorption effect]: Made from natural rubber with high elasticity and strength, providing effective shock absorption and cushioning to help protect equipment. [Improved work safety]: Metal and rubber components are bonded using a reliable process to help prevent loosening, enhancing durability and safety. [Easy to install]: Features external or internal threading for straightforward installation and removal, available in M6 and M8 thread sizes. [Performance and stability]: Precision craftsmanship ensures strong threading and secure fixation. Simple geometric design supports stable performance under lateral loads. [Application]: Suitable for use as a vibration damping element in machinery such as air compressors, water pumps, refrigerators, grinders, diesel engines, gasoline engines, and other mechanical equipment to reduce vibration and noise. Specification: Material: Rubber Thread: M6 / M8 M6: Rubber part 20 x 15 mm, thread length 18 mm M8: Rubber part 30 x 20 mm, thread length 23 mm Package includes: 4x rubber buffer