Material: Solid Sterling Silver with Cubic Zirconia, 925 Stamped 3.4x11.7x13mm (WxHxD) with 3.1mm Open Loop, 0.82mm (20ga) Post Stud Post Earrings /Earring Connector Finish: 14kt Gold Plated Brand Name: egemmall Stud post earring connector for DIY earrings.