Pro Jewelry .925 Sterling Silver Dangling Blue Crystal Butterly on 1/2" Endless Hoop Earrings 44 Quantity: 1 Pair Charm Size: 9.6mm x 11.4mm Hoop Size: 12.1mm x 12.3mm Thickness: 1.3mm conversion : 1 inch = 25.4mm or 1mm = 0.0393 inch Hypoallergenic / Nickel Free Material: Sterling Silver 925 Stamped