The 8221 part of a Radial Magnet is a type of high-power, permanent magnet made of neodymium or samarium-cobalt. It is a common component for industrial motors, generators, and loudspeakers, as well as for scientific applications. It has an exceptionally high energy density, which makes it useful for its widespread applications. Additionally, this magnet is constructed in a cup or rod shape, allowing it to be conveniently shaped to fit into any application. The 8221 type of Radial Magnet is also exceptionally structurally rigid, making it highly reliable in use.