Applied Magnets 6" x 2" Grade N45 Neodymium Disc Magnet Super Strong Rare Earth Neodymium Magnets - Strongest Permanent Magnets Available. NdFeB N45 Rare Earth Magnets, stronger than N42, N40, N38, N35 Approximate Pull Force: 1700 lbs, Great performance, Wholesale Price 6" diameter x 2" thick, magnetized through thickness, poles on the flat surfaces Quantity: 1 Strong Neodymium Magnet.