Hoppe’s BoreSnake is the fastest bore cleaner on the planet. One pass loosens large particles, scrubs out the remaining residue with a bronze brush, then swabs it all spotless with a cleaning area 160x larger than a standard patch.Everything you love about the BoreSnake plus better cleaning and superior strength. Brass weight on the pull cord is stamped with size 50% more brush cleaning power Cone-shaped bore guide on the leading end Nylon cord attached directly to the bronze scrubbing brush Lubrication zone