12mm Blot & Nut Reference Ring

Gold-plated brass. WOMEN'S SIZING:,XXS: Size 1 - inside diameter: 15.3mm / circumference 48mm,XS: Size 2 - inside diameter 15.9mm / circumference 50mm,S: Size 3 - inside diameter 16.6mm / circumference 52mm,M: Size 4 - inside diameter 17.2mm / circumference 54mm,L: Size 5 - inside diameter 17.8mm / circumference 56mm,XL: Size 6 - inside diameter 18.5mm / circumference 58mm,XXL: Size 7 - inside diameter 19.1mm / circumference 60mm