Cleans, lubricates and protects against rust all in one easy application. Removes all traces of lead fouling that can accumulate in your air rifle or pistol's bore. Just wet a patch and pull through your bore until all traces of lead are removed or until the patch comes out clean. Leaves your bore bright and ready to shoot. Will not cause build up or leave a residue. The same bore cleanser that is included in the Flex Cleaning Kit.