Material: Stainless Steel， Cobalt free<br /><br />Finishing: Polished， 18K Gold plated， Comfort Fit<br /><br />Ring size: 7 8 9 10 11<br /><br />Size  Conversion Chart: <br /><br />SizestInside Diameter tInside Circumference<br /> US & CanadatUK & Austral