Dementors are creatures of darkness, they suck the joy of men by filling them with despair and sorrow. The only way to keep them away is the Patronus Curse, first seen in Harry Potter and the Prisoner of Azkaban.
Discover this beautiful collection of magical creatures from the Harry Potter universe! Here is the figurine of the dementor, one of the guards of Azkaban prison. The figurine is detachable from its base.