Give your brass a brand-new look. The Frankford Arsenal Stainless Steel Media Pins combined with brass cleaning solution will do the job. The small design of the high-quality 304 stainless steel effectively cleans cases inside and out, as well as inside primer pockets. Ideal for rotary tumbling. Never need to be replaced. Magnetic for easy separation from casings with the Frankford Arsenal Media Release Magnet. Cleaning solution and magnet sold separately. Per 5 lbs. Imported.