Grade 8 Ceramic Ring Magnet OD45 X ID22 X 8mm (CR8-0452208)
This listing includes one piece of ring magnet which is made of grade 8 hard ferrite magnetic material. The gauss rating of this magnet is 3,850 internally. The surface gauss is about 2,000 gauss. This magnet can be used for speakers, science projects and craftings.Magnetized through thickness. No coating.