Hag Stone Amulet

Hag Stones or Fairy stones are any type of stone that has a natural occurring hole through it anywhere which has a sacred, spiritual or magical powers. The stones are literally created by nature, due to the stone crashing together along a sea or riverbed. 
It is said that they have massive power and can open a window to other dimensions and more. If you peer into the hole with one eye you may be able to see the Fairy realm.