CMS Magnetics® Grade 8 Ceramic Ring Magnet, OD 40 mm x ID 22mm x 6 mm. 6 Pack

• Industrial grade high quality ceramic ring magnet
• Grade 8 with 3,850 internal Gauss. 3.6 lb holding power per magnet
• Great item for speakers, science projects and magnetic therapy.
• Magnetized through thickness so that the N and S poles are on the flat surfaces.
• High quality magnet made under ISO 9001 quality systems