IOSSO CASE CLEANER 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 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 cases depending upon the degree of tarnish, residue and size. The Case Cleaner is available in quarts or gallons or in a convenient kit. The kit contains a quart of Case Cleaner, a bucket, and strainer bag. Biodegradable. Use Iosso Case Polish after cleaning for a high polish and protection against tarnish.