Designed to clean your favorite 20-gauge shotgun in one fell swoop, the one-piece Real Avid® Bore Boss® 20GA cleaning rope is an affordable bore cleaner featuring an integrated phosphor bronze brush that scrubs away stubborn carbon, copper, and lead fouling for a frustration-free clean and improved field performance. The braided bore mop easily wipes away residue and evenly distributes lubricants for a smooth, shining clean. Better yet, the Bore Boss self-stores in the included flex case. The case offers simple, compact storage, and comes equipped with an integrated slot, allowing it to be used as a handle to pull the cleaning rope through the bore more easily! Made in USA.