These rare earth magnets are extremely powerful for their size and are manufactured using Neodymium, Iron and Boron. They are amongst the strongest permanent magnets commercially available and are now used in a variety of applications. These magnets are coated with 3 layers of nickel, copper, nickel to reduce corrosion and provide a smooth finish. WARNING: DO NOT COMBINE THESE MAGNETS IN ORDERS WITH ELECTRICAL EQUIPMENT.
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