Flexible Material Each of our muffler hangers is made of premium EPDM rubber material with excellent flexibility, tear resistance, and durability. It maintains reliable performance even in harsh conditions such as high humidity and freezing temperatures, ensuring strong and stable fixation. Shock Absorption and Noise Reduction If your vehicle's exhaust pipe is too close to other components or the ground, address it immediately. These O-rings help properly suspend and secure the exhaust pipe, muffler, and chassis hanger at an optimal height and position, effectively reducing vibration, noise, and wear. Buyer's Guide These universal exhaust hangers feature an outer diameter of 2.72 inches (69mm), inner diameter of 2 inches (50.8mm), height of 0.7 inches (17.8mm), and thickness of 0.4 inches (10.2mm). They are compatible with most cars, trucks, SUVs, and vans on the market. Installation Instructions This package includes 4 rubber exhaust hangers for immediate replacement and use. Installation is simple: [1] Remove the old, worn rubber hanger from the exhaust pipe. [2] Clean any remaining dirt or debris from the mounting area. [3] Apply lubricating oil to the new hanger and install it securely in place.