Material: Titanium steel &amp;amp; Zircon<br />Width: 0.31&amp;quot; / 8mm<br />Color: Gold / Black / Silver<br />Diameter size(us):  7 / 8 / 9 / 10 / 11 / 12<br /><br />Note<br />1. Please allow 1-2cm difference due to manual measurement.<br /><br />2. Items will be shipped within 1-3 business days on payment received， reach most of the countries within 14 to 25 business days. Delivery time depends on destination and other factors， it may takes up to 25 business days.