Criss Cross Alloy Finger Rings Set, Spiral Wire Wrap Cuff Rings, Stackable Rings for Women, Electrophoresis BlackSize: ring 1: about 18mm inner diameter, 2mm wide, 1pc; ring 2: about 17.5mm inner diameter, 11mm wide, 2pcs; ring 3: about 17mm inner diameter, 15mm wide, 2pcs; ring 4: about 17mm inner diameter, 1mm wide, 1pc.