2 Educational Alnico Bar Magnet for Science, Education, Experiments, Students, a
--Each pack contains two magnets.\n--11mm x 6mm x 75mm.\n--North and south poles clearly identified.\n--Keepers included so that the magnets keep their magnetism for longer.\n--Protective epoxy paint coating.\nFrom the manufacturer\n Alnico magnets have been in production since the early 1930\u2019s and are the most recognised form of magnet. They are strong, typically less brittle than most rare-earth magnets and can be magnetised to produce a strong magnetic field.\n While Alnico is not as strong as rare earth, they are still commonly used in the manufacturing of sensors, guitar pickups, loudspeakers and many other everyday household objects.\n Alnico bar magnets are used when maximum strength is required from a small pole area. They are also commonly used to activate reed switches in proximity and counting applications.
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