Horseshoe shaped magnets are recognised as the universal symbol for magnets and magnetism. Horseshoe Magnets are made of Alnico material, a corrosion resistant magnet with a high temperature stability (up to 500⁰C!). Alnico magnets are manufactured from aluminium, nickel and cobalt, hence the name: Alnico. Although Alnico magnets are weaker than Rare Earth Magnets and Ceramic Magnets, they are less fragile and more durable than the others. All our Alnico Horseshoe Magnets are C5 grade.