This is a bag of Ultra Fine 0000 BRASS wool made in the USA. Using Brass wool is the preferred method of cleaning antique firearms! The Brass fibers are softer that fibers in steel wool, and gentle on the antique metal of your firearm. This is a must have in your shop! The quantity of what is seen in pic is what you will get. (approximately 2.5 oz.) Using brass wool is a great way to get the build up off of a gun without damaging the metal or bluing!