Since the rubber is a chain polymer material, when the rubber is deformed by external action because the molecules are entangled, the internal friction between the chains of molecules with high magnetism (more than 1000 times larger than the metal spring) is used to make the Reduce vibration to achieve the purpose of vibration reduction. Part of the mechanical energy is converted and converted into thermal energy, and the internal friction damping is better suited for high-frequency vibrations.