Bangle Diameter inside: 2.5 inches (64mm); Width: 1.5 inches (38mm) The Cuff edges are nicely rounded with no sharp edges. Bracelet Material: 316L Stainless Steel. It is Nickel and Lead free Can adjust the bangle size a little by bending the two ends. They are lightweight, comfortable, and the opening is exactly the right size to fit your wrist through & stay on without pinching The finish is brushed matt finish. It is not Shiny. It is such a basic and simple design that anyone can pull it on.