Size Chart
【US Ring Size,Inside Diameter,Inside circumference】;
【4,14.9 mm ,46.8 mm】;
【5,15.7 mm,49.3 mm】;
【6,16.5 mm,51.9 mm】;
【7,17.3 mm,54.4 mm】;
【8,18.1 mm,57.0 mm】;
【9,19 mm,59.5 mm】;
【10,19.8 mm,62.1 mm】;
【11,20.6 mm,64.6 mm】;
【12,21.4 mm,67.2 mm】;