Years of scientific research yielded this unique chemical compound that deeply penetrates and bonds to metal. Gives your favorite firearm the appearance and durability of a factory finish. Perfect for re-finishing tactical and other firearms with a truly black finish. Uses the same deep bonding action as blue wonder gun blue. A matte or glossy finish can easily be obtained. Great for touch-ups or complete re-finishing. <p> Contents:<p> Blue Wonder Gun Black2 oz Bottle <p>Blue Wonder Gun Cleaner 1 oz Tube<p> Blue Wonder Developer 0.5 oz Tube <p>Blue Wonder XFR Lubricant 0.5 oz Tube<p> Clean, black and Finish like a professional. Blue Wonder is Veteran Owned and Operated.