Everything you need for touch-ups or complete re-bluing of dozens of long guns. This Gun Blue Kit for gunsmiths includes two of the 4oz. tubes of Blue Wonder™ Gun Cleaner, the 16 oz. bottle of Blue Wonder™ Gun Blue, Developer as well as a tube of XFR Lubricant for corrosion protection. This complete package gives you everything needed by the professional gunsmith, or hobbyist, to provide the best care for the valuable investment that firearms represent! This Gun Blue kit contains the following: Blue Wonder™ Gun Blue – 16 Oz. Blue Wonder™ Developer - 2 Oz. Blue Wonder™ Gun Cleaner - 8 Oz. Blue Wonder™ XFR Lubricant - 1 Oz.   Instructions for use of this product can be found here.