These premium bore brushes are made with our new Nyflex fiber. The new brush fiber is cobalt blue in color so it can’t be mistaken for any other type brush. This thicker and stiffer grade of fiber holds up well to many types of cleaners and is meant to replace the old bronze and brass brush types. This brush is wound tighter and has more fiber per inch than any other brush. The shank is a solid construction and has a brass core. It may be used many times before wearing out. The Eliminator is available in rifle, pistol, shotgun, and black powder sizes. Use with the IOSSO Bore Cleaner and IOSSO Gun Oil to drastically reduce cleaning time and result in an unbelievably clean bore.