___________ is an example of permanent magnets.

Magnets with high residual magnetism and coercive force are known as permanent magnets. The magnetization of a permanent magnet is not easily destroyed by rough handling or exposure to a drifting magnetic field in the opposite direction. 
A magnet that keeps its magnetic characteristics over an extended length of time is called a permanent magnet. Examples include ferrite, samarium-cobalt magnet, Neodymium, etc. Temporary magnets simply behave like permanent magnets when they are in a strong magnetic field. Examples include paperclips, iron nails, electromagnets, etc.