The Real Avid Bore Boss 9mm/.38/.357 Caliber Single Pass Pull Through Bore Cleaner 12" Cable is the 'single pass' pull through bore cleaner that you've always wished you had! It has a long 12" dual action cable that includes a phosphor bronze bore brush to rip thru carbon and fouling, followed by a 8.5" long thick braided mop to remove it. The Flex-Case is an ergonomically engineered handle that makes pulling the tight fitting bore cleaner much easier and stores the components when it's not in use. The Flex-Case protects the bore cleaner from dirt and debris while keeping the rest of your gear safe from solvents and oils. So you can take the Bore Boss with you anywhere your adventures take you. Take care of your guns and they'll take care of you.