Restores brass casings to a bright finish in seconds. This liquid cleaner effectively removes powder fouling residue, oxidation, tarnish, discoloration, dirt, and grime. It cleans the inside of the casings and the primer pocket where tumbling media is not effective. Just immerse the casings in the solution for from 20 seconds up to five minutes, rinse, and dry. The Case Cleaner solution is reusable and economical. A quart of IOSSO case cleaner cleans approximately 1500 casings depending upon the degree of tarnish, residue and size. The solution may be used in an Ultrasonic Cleaner. It is suggested to line the pan with a plastic bag.