The Hornady One Shot Case Polish is a premium water-based bio-degradable polish specifically designed for use with Hornady's Tumbling Media to deliver superior cleaning results.Hornady One Shot Case Polish - 8 oz bottleWater-based and bio-degradable formulaCleans polishes and protects metalsCompatible with Hornady tumbling media systemsSafe for all metals except aluminumEssential for reloaders and shooters who demand professionally cleaned and polished brass cases this polish ensures optimal performance and extends case life through effective cleaning and protection.