20 pieces of gold plated brass earring hoops, equivalent to 10 pairs, made with brass for durability and resistance to corrosion compared to other metal alloys. These items are made with a special process to resist tarnishing, and with proper care, the color will last much longer than regular brass and other metal alloys. The hoop's total length with open ring is about 16mm (0.63 inch), with an outer diameter of about 14mm (0.5 inch) and a hole diameter of about 2mm (0.08 inch). The wire gauge/diameter is approximately 0.8mm to 1.5mm (or 20 gauge to 15 gauge), making it a strong ear wire. Some hooks may require a tool to open due to the tarnish resistant material, please consider this before ordering. This product comes with Adabele's quality assurance certificate from California, USA and is backed by a 30-day limited warranty. It is packaged in an Adabele Trademarked bag.