These premium IOSSO bore brushes feature a unique cobalt blue fiber, easily distinguishing them from other brushes. Crafted with a thicker, stiffer grade of fiber, they are designed for effective back-and-forth cleaning action, unlike traditional brass or bronze brushes. The brush is tightly wound, with more fiber per inch, allowing for multiple uses before wear. Paired with IOSSO Bore Cleaner and Triple Action Solution, these brushes excel at removing all types of fouling, including copper, lead, plastic wad and carbon burn. This combination drastically reduces cleaning time and leaves your bore impeccably clean. Available in rifle, pistol, shotgun and black powder sizes, the blue brushes are a trademark of IOSSO Products.