These little huggie hoops are made of sterling silver. The hinged system makes them super easy to put on and keeps them securely in place. It's a must in every jewelry box! The model is wearing the 12mm huggies in the second hole and the 15mm in the first hole in the last photo. 12 mm gold , 15 mm silver and 15 mm gold are also available. Materials: 925 silver Dimensions : 12 x 2,7 mm