Active Off-Road Bumpstops are made of durable, natural rubber. They smooth out the ride while supplying tough control to your suspension. Timbren Ride Control products enhance a vehicle's empty ride quality, while providing protection against overloading, road shock, bottoming out, sway and broken springs. Timbren Front axle kits prevent front end nose diving. Together, these features provide a smooth, level ride, even with heavy loads.