Please Read This On How To Choose Your size: First 2-3 digits Before the decimal point is for the Men's size， the digits After the decimal point is for the Women's size. For example， 11.5 = Men's size 11 and Women's size 5， 105.55 = Men's size 10.5 and Women's size 5.5---------------Condition 100% Brand new---------------Quantity (two rings)---------------Metal Stainless Steel <br />the rings size:USA code，<br />diameter      Circumference<br />5: 15.8          50<br />6: 16.4          52<br />7: 17             54<br />8: 18.2          57<br />9: 19             60<br />10: 19.8       62.5 <br />