This is a beautiful set of genuine Frosted Sardonyx post earrings featuring 6mm round beads direct which are tightly wrapped in your choice of wire, caging the outside of the bead and forming the ear prong on the back, creating a very simple and elegant look. A Butterfly back is included. (Black Iron earrings will have Stainless Steel backs), These unique wrapped earrings would make a beautiful gift for Valentine's Day, a birthday, anniversary, Christmas, Mother's Day, or any special occasion. It could be worn as a casual necklace or complement any fancy evening attire. Measurements: Length: 0.25" Width: 0.25"