14k Gold Filled Ball End Ear Wires 30pcs Style and Size : ball end ear wire, loop to top:12mm, tip to top: 20mm, 21gauge wire. Materials : 14k gold filled (14kGF stamped) Quantity : 30pcs Gold Filled: Gold filled is an actual layer of gold-pressure bonded to another metal. Gold filled is not to be confused with gold plating as filled literally has 100% more gold than gold plating. Gold filled is much more valuable and tarnish resistant. It does not flake off, rub off or turn colors. safe for people with sensitive skin.