Magnets and magnetic strips generate a magnetic field to attract, hold, move, and locate ferrous objects. Ceramic magnets are the most commonly used type of magnet. Also called ferrite magnets, they resist corrosion and high temperatures and are used in industrial and commercial applications. Alnico magnets withstand use in extreme temperatures and corrosive environments without losing their magnetism. Rare earth magnets produce a more powerful magnetic field than ceramic and Alnico magnets and are smaller in size, making them suitable for areas where space is limited. Flexible magnets can be cut-to-length for desired applications. They adhere to metal surfaces to hold and display items.