Dreambell 2 pcs 925 Sterling Silver Pin 5mm Pearl Cup Screw-back Stud Earring Post Setting Materials: 925 Sterling Silver (stamped) Size: Approximately 14mm long x 5mm wide. The pin on top of the cup is approximately 2mm long with 0.8mm (20GA) thickness Quantity: 1 pair/ 2 pieces Fits 6mm - 12mm pearls.