UnCommon Artistry Sterling Silver & Gold Filled Large Fancy Earring Backs (1 Pr Each) Fancy Large Earring Backs (aka "Earnuts") Ornate Design - 2 Pairs- 1 of each precious metal- 1 pair Sterling Silver; 1 pair Gold Filled- (2 pairs). Measurements: 9mm Diameter, 4mm deep. Will accommodate a 20 gauge (.032mm) standard earring post. Quantity: You get 4 earring backs per package BRAND: UnCommon Artistry- UnCommon Artistry is a registered brand with the US Patent and Trademark Office. UnCommon Artistry is the only authorized distributor of this brand on Amazon.