Metal Discs is an SSI India product in the MAGNETISM & ELECTROMAGNETISM category. Key specifications include SKU: SSI-PHY-MAG-11. Soft Aluminum Hard Aluminum Silver Nickel Zinc Zinc Plated Iron Brass Stainless Steel(magnetic) Stainless Steel(Non Megnetic) Bronze Copper Galvanized Steel Can be supplied individually or as a set. Metal Disc with identification marked on each disc. Review the listed material, dimensions, capacity, configuration and compatibility for the selected model before ordering.