... and high quality Prducts nameN35 Magnetic Balls With 5mmBrand nameWinchoiceMaterialNeodymium, rare earth materialTolerance5+0/-0.1 mmFeturesinc, Copper+Nickel, Epoxy, Gold, Silver ... , Neodymium Magnet, SmCo Magnet, Ferrite Magnet, Alnico Magnet, Permanent Magnet, Rare-earth MagnetMagnetizing Direction: Axial Magnetizing, Radial Magnetizing, Quadrupole Magnetizing, Octupole Magnetizing ...