The brush features a small end for cleaning tight spaces, and a larger end for cleaning revolver cylinders, choke tube threads, and just about anything else. The brush has a polymer handle that is long enough to get into those hard to reach places, and makes cleaning a breeze. The Pro-Shot brushes come with your choice of nylon or bronze bristles. The nylon bristles will not harm the finish of your firearm, but still provide plenty of cleaning power. The bronze bristles are more aggressive for cleaning corrosion and stubborn residue.