1.Materials: Neodymium-Iron-Boron 2.Shape: cube, block, disc, arc ... CTI Magnet(NdFeB magnet) is made from Neodymium,Iron,Boron and some other transitive metallic elements to make ... sphere, block ,ring ,tile, arc, and etc.High magnetic performance (Br: 11,000 to 14,500 Gs,Hci: ... up of optical disk drive), mobile phones, wind generator, magnetic resonance image, Hi-Fi system, auto motors, etc. ...