Double-faced Sterling Silver Simulated Ivory Pearl Beads Clear Square Cz Stud Earring Pair METAL: .925 sterling silver (Hypoallergenic) STYLE: Double-faced Simulated Ivory Pearl Ball with 5mm Square Clear Cubic Zirconia - Earrings Pair FRONT STUD: 5mm BACK STUD: 16mm A must have for your earring collection!