General description Made of high-quality wool felt, these polishing discs are designed for durability and effective polishing. They are ideal for achieving a shiny finish on various metal surfaces and plastics while ensuring a scratch-free application. Technical specifications Diameter: 25mm Material: Wool felt Application Suitable for polishing metal surfaces such as steel, aluminum, zinc alloy, brass, and copper Effective on plastics Used in cylinder bore mills, pipes, molds, medical equipment, beauty equipment, jewelry, stainless steel, glass equipment, and machine parts Installation Can be installed on an electric grinder