The Pro-Shot Premium 2-Piece Micro-Polished Shotgun Cleaning Rod has a mirror-like jeweled finish that is more dense and hardened due to an added new step in the rod manufacturing process. The exclusive manufacturing process of burnishing/micro polishing, grind and polish the rods for an even denser mirror like jeweled finish. The hardened dense jeweled mirror-like finnish does not pick up and carry abrasive grit or dirt through the bore. This makes the Pro-Shot Micro polished ro the bet type of gun cleaning rod to use.Specifications and Features: Caliber Group: 10mm, 40 Caliber, 410 Bore Coated Rod: Yes Handle Material: Brass Rod Material: Steel Threads: 5/16"-27 Tip Material: Brass