The Dayton Parts Rubber Bolster Air Spring Pair is the perfect solution for heavy-duty truck and trailer suspensions. Made of high-quality materials, these air springs are designed to withstand heavy loads and harsh environments. The durable rubber bladder and strong outer shell ensure that these air springs will last. The Air Spring Pair includes a built-in air chamber that can be adjusted to provide the desired level of stiffness. This allows you to customize the suspension to your specific needs, ensuring a smooth and comfortable ride. Installation of these air springs is easy and straightforward, and maintenance is a breeze. With the Air Spring Pair, you can be confident that your heavy-duty truck or trailer suspension will perform at its best, no matter what the road throws your way. FleetPride is your First Click in Heavy Duty®.