Neodymium magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron. They are known for their strong magnetic field, which makes them much more effective than traditional magnets. These magnets are commonly used in various applications, including speakers, motors, and magnetic locks. 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 dropped. Proper handling and care are essential to ensure their longevity and effectiveness in different uses.