2PCS 1.6″x 0.8″ Powerful Neodymium Rare Earth Large Cylinder Magnet N52 Round US
2x N52 40x20mm Neodymium Magnet. Long magnetic force and long service life, all magnets are coated to provide a smooth, shiny, corrosion resistant and non-scratching surface, neodymium magnets are usually coated nickel-copper-nickel plating to prevent the iron from rusting.