... :ISO9001:2008 5.Coating:Ni Zn etc 64 1/4" CUBE MAGNETS N42 Neodymium rare earth + bag + magnetic 64 magnet cubes ... N33-N52 33M-48M and so on3. Shapes Others available: Block, Cylinder, Block, Disc, Arc, Customized 4. Size You could choose freely ... ,wind generators, speakers, loudspeakers, magnetic filters, etc. 64 1/4" CUBE MAGNETS N42 Neodymium rare earth + bag + magnetic