French hook marquise ear wire components. Approximately 30x12mm with a 1.2mm closed loop. 18-gauge (0.9-1mm) wire. 1/10th silver filled. A great alternative to sterling silver. Silver fill is a layer of 0.925 or greater silver which is mechanically bonded to a brass core. It is 100's of times thicker than any silver plating. 1/10th silver-filled items are at least 1/10th silver by weight.