Neodymium Cylinder Magnet Dia50x30mm Dia50 x30mm Super Strong Cylinder Rare Earth Neodymium Salvage Magnets Magnet Material: NdFeB or Neodymium Iron Boron Magnet shape: Cylinder Magnet grade: N52 Diameter: 50mm Thickness: 30mm Tolerance: +/-0.1mm (0.004”) Coating: NiCuNi Plated Operating Temp(Max).: 80℃ Direction of magnetization: Axially magnetized