All of our items are Brand New!! Metal: 18g Surgical Stainless Steel Gemstone Type: 2,2.5,3,3.5,4mm Green Cubic Zirconia Special Finish: High Polish Size / Style:  18G (6mm Length) Product ID: J359z These rings are internally threaded for comfort and easy insertions. They are also Surgical Stainless Steel, Hypoallergenic and comfortable. You will get one ring in unless you choose one of the lots.  You can select the length, gauge and stone size you would like.