Post

A post is a short length of straight wire that is affixed perpendicular to the back of an earring and passes through the earlobe. The earring is secured by the use of a clutch that slides on or is threaded onto the post or an earclip that allows the post to pass through.
Post and Clutch on a Stud Earring.

Post and Clutch on a Stud Earring.

Threaded Post and Clutch on a Stud Earring.

Threaded Post and Clutch on a Stud Earring.

Post and Clip on the Reverse of an Earring.

Post and Omega Clip on the Reverse of an Earring.