isotropic: Structural equal concerning the directions of space, which means for magnets that none of the directions of space is preferred against others.
anisotropic: Structural unequal concerning the directions of space, which means for magnets that they are exposed during the production process to a high magnetic field which forces the „elementary magnets“ to align themselves in the direction given by the field. Later on, when magnetized along the preferred axis, one obtains much better magnetic values than for other directions of space.
temperature: operation Temperature up to which the magnet can be used with reduced holding force. Exceeding this value can affect glue, plastic and eventually the magnetic values.