This is a ceramic ferrite magnet with a concave point (small pit) mark on the surface, ring shape, 20.5mm outer diameter, 7.5mm hole, 3.5mm thickness, axial magnetization 4 poles, 2 N poles, 2 S poles, gauss measurement with a gaussmeter gauss result is about 1050 gauss, especially suitable for small home appliances, electrical appliances, magnetic sensors and so on, welcome to inquire about samples.
Very close in size;