The Motobilt poly bushing and DOM tube sleeve kit can be used in a variety of applications such as roll cages, engine mounts, transmission mounts, suspension and other areas where you may want to allow movement and reduce vibration. The kit includes a 3” wide mounting width poly bushing with a 1/2” hole in the center sleeve. The heavy duty DOM tube steel outer sleeve is 1/4” wall 1-3/4” O.D. The outer tube is CNC machined for a smooth perfectly square surface.