The 1 Piece Stainless Steel Micro Polished Pro-Shot Cleaning Rods have a mirrorlike jeweled finish that is denser and hardened due to an added new step in Pro-Shot’s rod manufacturing process. Their exclusive manufacturing process of burnishing/micro polishing besides centerless grind and polish our rods for an even denser mirrorlike jeweled finish. The hardened dense jeweled mirror-like finish of Pro-Shot’s rods does not pick up and carry abrasive grit or dirt through the bore. This makes the Pro-Shot micro-polished rod the best type of gun cleaning rod to use.