Name: Lightning Ring<br />Material: titanium steel<br />Style: Men and women<br />Color: Silver<br />Ring Size: 7，8，9，10，11，12，13<br />Please note that if you do not know which size is right for you， please refer to the table below.<br />American 6 diameter 16.5mm circumference 52mm<br />United States 7 Size 54mm 17.3mm OD<br />American Size 8 57mm 18.2mm Perimeter<br />American 19mm 60mm Diameter Diameter Perimeter<br />American Size 10 62mm 19.8mm Perimeter<br />American Size 11 66mm 20.7mm Perimeter<br />American size 12 70mm 21.5mm perimeter<br />American Size 13 70mm 22.7mm Perimeter<br />Tips: Please press the size of their own finger to buy， the arrival of different countries to arrive at different times， hope to wait patiently.<br />Thank you for loving our products， we will try to do our best.