Neodymium Cylinder-Shape Magnet,neodymium magnet, used for speaker & generator Material: NdFeB magnet, Permanant magnet Application: speaker, package box, toy ,and so on sheet & ... 5, 5*1.2,(diameter*thickness, mm) Material: NdFeB magnet, Permanant magnet ;Grade: N35-N52,33M-48M,33H-48H,30SH-45SH, ... whose diameter and thickness ,hole size can be custom-made. Neodymium Permanent Cylinder-Shape Magnet