With the 400 Micro Cleaning Kit, you can clean 410 through 12/10 gauge shotguns without disassembling it. This shotgun kit contains a 36” Memory-Flex® cleaning rod, a solid brass slotted tip with an internal thread, large and small Patch Savers®, .5oz. Otis O85® Ultra Bore® Solvent, all-caliber patches, and a 12/10 gauge bore brush. The micro kits contain the bare essentials needed to clean your firearm utilizing Otis's patented breech to muzzle cleaning method. Available for all types and calibers.