CMS Magnetics® Ceramic Magnet 1 7/8\" x 7/8\" x 3/8\" Rectangle, Package of 12 Ceramic 8 Hard Ferrite
Price 9.25 - 68.76 USD
ceramic magnets Hard Ferrite * Gerade 8 * Holding Power 3.5 lbs. * Economical option for science projects * 10 year warranty on the magnetic strength.