An earring is a piece of jewellery attached to the ear via a piercing in the earlobe or another external part of the ear (except in the case of clip earrings, which clip onto the lobe). Earrings are worn by both sexes, although more common among women, and have been used by different civilizations at different times.
The main characteristic of stud earrings is the appearance of floating on the ear or earlobe without a visible (from the front) point of connection. Studs are invariably constructed on the end of a post, which penetrates straight through the ear or earlobe. The post is held in place by a removable friction back or clutch