... ,shining surface 3. more size can be custom-made round magnets with screw holes material: sintered NdFeB magnet;rare earth permanent magnetsshape: according ... segment, tile, and ball types of magnets, and also include special magnetic-bar, magnet with iron-shell, adding water-proof pvc ... N45M, N35H-N45H, N35SH-45SH, and N28EH-N33EH for NdFeB (Neodymium magnet), and Y25, Y30, Y30BH, and Y35 for Ferrite ...