Alstons Top Sportsman/Pro Anti Roll Bar is one of the strongest in the industry. Made from 2" x .250" wall DOM tubing, giving you the strength you need for those 1000hp + cars. The rocker arms are welded in a double shear configuration, 6" center to center mounting. The link tubes are made from 7/8" 6061 T6 aluminum 8 ½" long and are threaded left and right for fast and easy adjustments. The mounting cups have bushings machined to exact tolerance's and never need grease. Comes with ½"spherical Aurora Bearing rod ends, 3/16" thick mounting tabs and grade 8 bolts.