Berry\'s Corn Media presents its top-quality 14/20 grit corn cob, specifically designed for use in our vibratory tumblers. This product assures a thorough cleaning and polish of your brass, rendering it to sparkle with a bright and shiny finish. For an enhanced, quick, and easy rejuvenation of your brass, add about 2-3 capfuls of our Berry\'s Brass Bright Polish. With this combo, your brass will return to its new-like appearance in no time.