*Gender: [ Men ]<br>*Color: [ Silver&amp;black ]<br>*Item size(Circumference): [7#=53.4 mm] [ 8#=56.5 mm ] [9#=59.6 mm ] [10#=62.5 mm ]<br>*Metals Type: [ Titanium Alloy ]<br>*Material: [ crystal ]<br>*Feature: [ allergy free，cool，high quality ]<br>*Weigh