Each crystal is wrapped in Sterling Silver, Copper, or Gold Filled wire. A variety of choices are available to choose from to suite your personal style or crystal selection. There’s the basic cage wrap, which is great for crystal points of all sizes. The “Fancy Wrap” adds a little more flare to wrapped points or flatter crystals. The “Net Wrap” is perfect for tumbled stones. And the “Work of HeArt” and “Drop” pendants make for a more sophisticated look.