We make this lockable wrist cuff from real leather. It is seamless, we have solved the adjustability by punching holes in it, so you have to insert the metal fitting into the hole where the padlock fits to make it comfortable to wear. We sewed a small strap in the middle to hold a D-ring. Width 5,5 cm. With real leather lining. Please specify the exact circumference of the wrist so that we can customise it.