... ring magnet; 2.grade: N42; 3. size: D16*2*4mm; 4. coating:Ni; 5.magnetization: axial ring magnet, rare earth, neodymium magnet, magnetic material, Neodymium magnet ... , NeFeB magnet, permanent magnetItem name: ... shape customs General informatin of ndfeb magnet:1.Shape:ring, cylinder, block, arc, ladder ...