Premium QualityM8 rubber vibration isolation mounts are made from softer rubber and steel to ensure maximum strength and durability for long term use. Not easy to deform, corrode or age. Safe to useEnvironmental friendly and non-toxic materials. The rubber vibration isolator complies with EU standards and can be used without worry. Vibration and Noise ControlAbsorbs mechanical vibration, suppresses and prevents mechanical displacement and slippage caused by vibration, and effectively reduces noise. Protect the normal work of the body and get a good environment. Geometric DesignSimple geometric design supports dynamic performance and stability under lateral (lateral) forces. Wide range of usesRubber bearings are mainly used as damping elements in equipment such as fitness, air conditioners, air compressors, gasoline/diesel engines and water pumps. Rubber vibration isolation mounts are used to protect machinery and equipment from unwanted acoustic vibration and shock. They can be used in a variety of applications such as engines, fans, blowers, pumps, office equipment, medical equipment, compressors, welders, panels, material handling equipment, centrifuges, dryers, lawn and garden equipment, and possibly more. Specification: Material: rubber + zinc-plated steel Color: Black + Silver Thread diameter: 8 mm (M8) / 0.31" Thread size: 8 x 23 mm / 0.31" x 0.91" Rubber dimensions: 30 x 20 mm / 1.18" x 0.79" Package included: 4 M8 30*20 Rubber Insulator Mounts