Neodymium block magnets are powerful and versatile magnets made from an alloy of neodymium, iron, and boron. These magnets are part of the rare-earth magnet family, known for their exceptional strength despite their small size. The block shape increases the surface area, enhancing the magnet's holding power and making them ideal for various applications, including in motors, sensors, and mounting tools. Neodymium block magnets have a high resistance to demagnetization and can maintain their magnetic properties under extreme conditions, although they are somewhat brittle and prone to corrosion. To combat this, they are often coated with materials like nickel, copper, or gold to prevent oxidation and extend their lifespan. Their strong magnetic fields make them essential in both industrial settings and everyday uses, where high magnetic strength is required in a compact form.