Pro Jewelry .925 Sterling Silver "Ace of Spades" Stud Earrings for Women & Children EES APS 149 Quantity: 1 Pair Size: 10.5mm x 7.5mm x 11.7mm Post conversion : 1 inch = 25.4mm or 1mm = 0.0393 inch Hypoallergenic / Nickel Free Material: Sterling Silver 925 Stamped