Largeur de la chaîne: 1.5mm/1.8mm/2.0mm;Longueur de la chaîne:40 cm-60 cm
Suggestion: Slim rotation 1.6mm thickness, general standard body rotation 2.0MM thickness
Men:
Thinner recommended to wear 45cm
Standard body: 50cm recommended
Fater: 50 or 55cm recommended