Rectangle Ceramic Magnet 1x1x4" Bar Magnet for Magnetic Therapy, Science Projects, School Project, General Holding Purposes - One Piece Hard Ferrite Ceramic Magnets - An Economical Solution for Arts & Crafts Grade C8, One Of the Strongest Grade Ceramic Magnets Available With a Gauss Rating of 3,850 Made of high quality magnetic material with ISO 9001 quality control systems Magnetized through 1" thickness. N and S poles are on the 1" x 4" surfaces Low cost but high strength magnet