Super concentrate.  This one bottle makes over 2 gallons of reusable cleaning solution and will clean 8,000 medium sized cases. Easily removes,resizing lubricant,oils,grime and stains from brass cartridge cases. Restores them to original finish for reliable operation. Helps remove powder residue. Brass Cartridge Case Cleaner is a safe, non fuming,non etching solution that wont weaken cases.  Reusable. store solution in a plasic or glass container(not metal) and use when needed.