Product Advantages:       1, Circular ring magnet size: 0-150mm 2, Magnetizing Direction: Radial 3, Assembling: Circular ring magnet can be assembled with steel shell, disc or plastic cover for device. 4, Coating: Any special coating you may want, no problem! Even unusual such as black zinc. 5, Lead time: Sample of Circular ring magnet cab be quick finished around 5 days, and ship free. 6, FEA analysis or simulation: FEA REPORT can be offered to client.  7, Report of physical detection: Can be offered to client.