Cleaning your brass before reloading has never been easier thanks to the Frankford Arsenal Brass-Cleaning Packs. Prepackaged and measured, these cleaning packs feature a crystallized, water-soluble formula that quickly and effectively cleans even the dirtiest cartridges. Each pack cleans up to 500 pieces of brass, and stores in a resealable storage bag. Prepackaged and measured Crystallized, water-soluble formula Quickly and effectively cleans brass casings Resealable storage bag