The Black Gold Rod Stabilizer Bar is made from 4142 chrome moly, and is guided with amodel polyphthalamide (PPA). The rod stabilizer bar can be put anywhere in the rod string to maximize your rod and tubing life. It is highly recommended to run the stabilizer bar right above the pump. This will maximize pump efficiency by decreasing plunger wear on the top of the pump. It will also improve plunger performance, improve pump performance in deviated wells, keep the rod string in tension to minimize rod buckling, and can help keep K-bars and rods from wearing out your tubing.