Features: * Also known as rare earth magnets, these powerful permanent magnets are made of neodymium, the strongest magnet material available * Can also be used as a door latch * Used in woodworking projects, attaching name badges to clothes, science experiments * .315 in. diameter x .118 in. thick What"s In The Box: * Master Magnetics 7045 Super Neodymium Magnet Discs - 10-Pack