These light weight earrings are electroformed in 18k gold over copper with sterling silver post. Kroiz first carves the form in wax and then electroforms them in copper and then in your choice of metals. These are two part earrings and the front has a typical silver post that goes through the ear into the back half which is also the back half of the earring. They are easy to put on and to wear. 1.0in W x 2.0in L x 1.5in D. Ships in 1 day.