Flitz Tumbler Media Additive cuts your tumbling time in half! Easy and safe to use! Leaves your cases bright and shiny and ready to re-load! Tough metal requires tough cleaning. Supercharge your media's scrubbing power with Flitz Tumbler Media Additive! FeaturesSafe on Brass or ANY Metal.Does not deaden primerDoes not stress or embrittle brass. Use with walnut shell or corn cob tumbling media. Removes:oxidationpowder residuefingerprints & more!