Super concentrate. This one bottle makes over two gallons of reusable cleaning solution and will clean 8000 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 won't weaken cases. Reusable store solution in a plastic or glass container (not metal) and use when needed.*** Note: THIS PRODUCT CAN NOT BE SHIPPED INTO THE STATE OF CALIFORNIA DUE TO CARB (California Air Resource Board) RESTRICTIONS!***