Neodymium magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron. They are known for their strong magnetic field, making them much more effective than traditional magnets. These magnets are commonly used in various applications, including speakers, motors, and magnetic jewelry. Due to their strength, neodymium magnets can be quite small while still providing significant magnetic force. However, they are also brittle and can chip or break if not handled carefully. Proper storage and usage are essential to maintain their effectiveness and longevity.