Asdomo Ultimate Gun Bore Snake Pistol/Rifle Cleaner for Rifle & Pistol .30 Cal .308 30-06 .300 & 7.62mm HASIT Multiple short brushes embedded in the floss pass easily through the shortest action or port. Initial floss area (inside the barrel) removes loose grit and debris prior to the scrubbing action of the brush. Main floss, with 160 times more floss than a patch, super cleans the bore. Brass weighted drop-through cord slips easily down barrel, Grasp and pull the cleaning cord through the barrel. Washable and reusable. The world's quickest three-step bore shine. Extremely packable. Brass weight on the pull cord is stamped with the size. Machine washable. Patented one-piece design.