Mounting rings secure around the lift cylinders found in the Allstar Air Jack Kits providing a mounting point to secure the lift cylinder to the chassis. The steel mounting rings are 3/4" tall and are direct replacement for the rings included in the Air Jack Kits. The 2pc aluminum mounting rings are 3/4" tall and feature a 1/2"-13 socket head cap screw recessed into the clamp enabling the mounting ring to be secured to a weight bracket or a chassis tab.