Magnet Alnico 500 4x19mm is an Alnico (Aluminum-Nickel-Cobalt) Permanent Neodymium Magnet by StandexMeder. The magnet has a shape of a cylinder and measures 4mm in diameter by 19mm in length. It produces a maximum pull force of 5.4Kg/12Lbs and a maximum operating temperature of 300°C/572°F. It is commonly used in applications including relays, switches, low-flux electric motors, audio equipment, sensors, and linear actuators.