2PCS Car Spring Shock Absorber Buffer Pad – Shock Absorption Rubber Ring(Install one for each wheel.) Therefore, the minimum order quantity is 2 pieces. For one vehicle, 4 pieces should be ordered. Please find the size that suits your car. I. Product Functions If the spring has become weak (the vehicle body is pressed down very low when carrying a slightly heavier load), it is recommended to install the buffer rubber! It can assist the spring, relatively raise the vehicle body, and improve the load bearing capacity. If