This beautiful necklace will dress up any outfit! Great combination of a double strand, smooth dark brown colored natural cork with a variety of silvery beads. The necklace is choker length, 16" with a very easy to use magnetic closure. If you have seen and like Pandora jewelry, you will love this necklace. There is no nickel in any Cortizza jewelry. The beads are made of zamak, an alloy that combines zinc, aluminum, magnesuim and copper.