Horseshoe magnets have a classic AlNiCo magnet shape. AlNiCo magnets can be manufactured through both casting and sintering process. Then almost all of AlNiCo horseshoe magnets are belonging to cast AlNiCo magnets. AlNiCo horseshoe magnets were mainly served to the holding applications in the early days. Thus basically used in educational facilities nowadays. Dramatic repulsion and attraction force between the magnet and magnet or ferromagnetic object sure to catch young children’s interest.