This is a beautiful set of genuine Black Obsidian post earrings featuring 6mm round beads which have a simplewrap to the back of the bead, setting it securely and forming the ear prong on the back, creating a very minimalist elegant look. A Butterfly back is included. (Black Iron earrings will have Stainless Steel or Titanium 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"