1.Nose Septum Ring Hoop Earrings:16 gauge (thickness: 1.2mm), inner diameter has 6mm,8mm,10mm and 12mm . Please check the inside diameter carefully according to the SIZE CHART OF THE HOOP NOSE RING. Select the most fitable size for yourself. 2.Hoop Ear Rings For Women : 316L Surgical Steel ( lead free, nickel free and cadmium free ).You don 't worry about allergies.Polished very well, easy to wear without sharp edge. 3.Usable Rang :It can be used for body piercing including Septum,Nose,Ear,Conch, Cartilage,Tragus, Rook, Lip, Belly, Nipple, Daith etc.To make you unique and charming. Sold individually,one ring per order. 4.Saves time: easy to open and close the click closure by hand.And it 's still tight after long-time use,so it will not miss when bathing, walking or exercising. 5.Special Outlooking: The nose ring with delicate shining Zircon&OPAL to make you pretty and unique.