Lever Back Earring with 4mm Cubic Zirconia Stone Sterling Silver (6 Pairs of Earrings) This Sterling Silver Lever Back Earring features a beautiful Cubic Zirconia mounted in a Bezel Setting, plus an Open Jump Ring for attaching your favorite Dangle, Crystals and Beads. Size: 4mm Post thickness: 20 gauge Jump Ring size: 3.0mm * Order this for 6 Pairs