Neodyium permanent Magnetic Material: Neodymium(ndfeb) Coating:Nickel shape:block,segment size:according to your need Neodyium Magnetic Material: ... less than 2 mg/cm2 Neodyium Magnetic applications: loudspeakers,motor assemblies,windmill,Home appliance,acousics,communication ... equipment,toy,car,servomotor,step motor,DC motor and linear motor,mircrophones Pros: Very strong hold when ...