Contains an expensive samarium and cobalt (Smco) magnet inside, and an inert carbon mark (black) is marked for easy identification.
Compared to traditional alnico magnets, it is not only strong magnetic force, but also has less deterioration of the magnetic force, so it can be used for a significant period of time.
Diameter x Total Length: 0.2 x 0.6 inches (6 x 15 mm)
Material: PTFE