This pair of 1cm sleeper hoop earrings are made from sterling silver and have a small section in the middle which has a delicate twisted rope design around the tube. There are three rotations in total with a 3D effect. The tube is 1mm wide and the twisted section is 2mm wide and 4mm long. They can be fiddly to fit but are sure to stay in place and be comfortable to wear for long periods of time once in.