Neodymium magnet is a permanent magnet made from an alloy of neodymium, iron and boron. NdFeB magnet are widely used in various fields, such as motors, speakers, electric generators etc. Besides, neodymium magnet is the strongest type of permanent magnet commercially available.

Here are many grades of neodymium magnets can be chosen. Higher values indicate stronger magnets and range from N35 up to N54. Letters following the grade indicate maximum operating temperatures.