Imagine… A mirror clean Bore… That is exactly what you get with this powerful concentrated gel. It adheres to the surface of the bore for deep cleaning action. In the bore, it completely removes copper and lead deposits, powder residues, and plastic build-up. It also removes black powder corrosion, leaving a chemically clean, bare metal surface – in minutes! In addition, Blue Wonder™ Gun Cleaner will remove rust from the exterior finish of a gun and it will not harm or affect the bluing! Add to that, it is completely non-toxic and bio-degradable! MORE INFORMATION: INSTRUCTION PAGES  Features Powerful Concentrated Gel - Sticks to inside of the bore to work more effectively Removes copper fouling Removes lead fouling Removes rust without harming bluing  Removes plastic buildup from shotguns Removes oil from oil-soaked stocks Safe for ALL firearms including polymer frames Non-Toxic Biodegradable Non-Flammable  Product contents: 1 ea, 4 oz Tube, Gun Cleaning Gel