Product name: PU foam buffers/shock bump stop ThisPU foam buffersr for suspension system is made of imported raw material . Features: 1) with low dynamic distortion 2) with excellent rebound resiliency 3) keep good rigidity 4)material: PU FOAM (NDI and MDI) ,according to your requirements 5)Specification: according to your drawings or samples. 6)Hardness can from 10 to 90 shore A 7)Large energy absorption 8)Long elastic travel 9)Excellent pressure-resistant recovery 10)High compression strength 11)Aging resistance at a high/low temperature 12)Eco-friendly