The automobile bumper has only very slight lateral expansion when it is compressed, has good physical properties, can still provide high-quality performance in a small space, and is very suitable for automotive parts that need to withstand large dynamic loads. . The resonance frequency of the buffer block is far away from the road noise resonance frequency of 15~20Hz, which can effectively reduce the resonance effect between the body parts and the ground, and provide excellent shock absorption and noise reduction effects.