When specifying the neck circumference, please indicate the unit of measurement you are using—whether centimeters, millimeters, inches, etc. This style also supports personalized customization; the design can be adapted to create ankle cuffs, wrist cuffs, and similar items. Should you have any specific requirements, please feel free to contact our customer service team at any time. Simply provide your contact details and specific inquiry, and one of our customer service specialists will reach out to you as soon as possible to offer suitable recommendations.