Metals Type:Zinc Alloy Gender:Men Material:Metal Size:4 Circumference(mm) 46mm Diameter(mm) 14.9mm Size:4.5 Circumference(mm) 47.97mm Diameter(mm) 15.3mm Size:5 Circumference(mm) 49.32mm Diameter(mm) 15.7mm Size:5.5 Circumference(mm) 50.5mm Diameter(mm) 16.1mm Size:6 Circumference(mm) 51.87mm Diameter(mm) 16.5mm Size:6.5 Circumference(mm) 53.19mm Diameter(mm) 16.9mm Size:7 Circumference(mm) 54.51mm Diameter(mm) 17.3mm Size:7.5 Circumference(mm) 55mm Diameter(mm) 17.7mm Size:8 Circumference(mm) 57.15mm Diameter(mm) 18.1mm Size:8.5 Circumference(mm) 58.25mm Diameter(mm) 18.5mm Size:9 Circumference(mm) 59.34mm Diameter(mm) 18.9mm Size:9.5 Circumference(mm) 60.84mm Diameter(mm) 19.3mm Size:10 Circumference(mm) 62.33mm Diameter(mm) 19.8mm Size:10.5 Circumference(mm) 63.65mm Diameter(mm) 20.2mm Size:11 Circumference(mm) 64.97mm Diameter(mm) 20.6mm Size:11.5 Circumference(mm) 66.29mm Diameter(mm) 20.9mm Size:12 Circumference(mm) 67.51mm Diameter(mm) 21.4mm Size:12.5 Circumference(mm) 68.82mm Diameter(mm) 21.9mm Size:13 Circumference(mm) 70.15mm Diameter(mm) 22.3mm Size:13.5 Circumference(mm) 71.47mm Diameter(mm) 22.8mm Size:14 Circumference(mm) 72.50mm Diameter(mm) 23.1mm Size:14.5 Circumference(mm) 73.82mm Diameter(mm) 23.4mm Size:15 Circumference(mm) 74.85mm Diameter(mm) 23.9mm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin