Ring NdFeB magnets that in size of OD18*ID10*4MM used in encoder.

Disk Neodymium magnets that sized Dia9.5 * 1 mm thick,Coated by Zn.

Model Number: YSNEO-43
Instrument magnet
Material: Nd2Fe14B + other rare earth material
Grade: N35 to N52
Coating: Nickel, Zinc
Applications: instrument and apparatus

NdFeB Magnets sized Dia12.5*6.5mm, coated by Zn, and Axial magnetized.