Profile: K&J Magnetics, Inc. offers a wide range of strong neodymium magnets. Neodymium magnets are a member of the rare earth magnet family and are the most powerful permanent magnets in the world. They are also referred to as NdFeB magnets or NIB, because they are composed mainly of neodymium, iron, and boron. These magnets have a high resistance to demagnetization, unlike most other types of magnets. They will not lose their magnetization even if dropped. We offer neodymium disc magnets, neodymium cylinder magnets, neodymium block magnets, neodymium ring magnets, surplus neodymium magnets, mounting magnets, plastic/rubber coated magnets and grade N50/N52 magnets. We also offer magnetic sculpture kits, sample packages, permanent magnet levitators, steel balls, special shaped neo-magnets and magnetic viewing film. Our super strong neodymium magnets coated in plastic & rubber are completely weatherproof and are virtually indestructible.