Italian Abrasive Ceramics Bonds Dry Polishing Media 1kg, for Vibratory Tumbler Suited for coating removal on delicate surfaces such as wood, plastic, fiberglass, aluminum, etc. Best choice for removing the baked-on deposits on ferrous metal surfaces like iron or steel, or to clean internal parts. Perfect for polishing, deflashing & deburring machined parts made of various materials such as brass, plastic, aluminum, glass, as well as precious metals and stones. Use with both tumbling and vibratory applications, Polishing surfaces to a high shine, Polishing nuts and bolts and other hardware. Cleaning ammunition reload cases. Cleaning jewelry, Cleaning rocks and gems.