Product Advantages:       1, Multipole Ring Magnet size: 0-140mm 2, Magnetizing Direction: Radial Multipole 3, Assembling: Multipole Ring Magnet can be assembled with steel casing or plastic shell in device. 4, Coating: Any special coating you may want, no problem! Even unusual such as black zinc. 5, Lead time: Sample of Multipole Ring Magnet can be quick finished in 7 days, free shipping. 6, FEA analysis or simulation: FEA REPORT offered to client. 7, Report of physical detection: Can be offered to client. 8, Application: Audio equipment: headphones, microphone, speaker. Instruments: electric meter, speed meter, flowmeter, tachometer. Medical equipment: MRI, magnetic water devices and magnetic water treatment device, magnetic sensor. Motor: voice coil motor(VCM), step motor, textile synchronous motor, geared motor, disc motors, servo motors, permanent magnet moving coil device. Industrial electric drive and control: magnetic clamp, magnetic crane, magnetic filter, oil degreasing equipment, magnetic coupling, magnetic switch. 9. Attention: The neodymium magnets are extremely stronger. They must be handled carefully in case of personal injury or damage.