1.NdFeB Magnet, 2.RoHS Approved 3.Used in all kind of Motors Grade: N35HSize: R20*R8.4*45°*8mmCoating: nickel platedHigh performance, excellent resistance to demagnetization and corrosionWidely used in motors, speakers and sensorsPassed ISO 9001:2000Complies with RoHS directiveare welcome, you can tell me what kind of size, grade, coat and tolerance requirements that you want permanent magnet ...