Amythyst Silver or Yellow Gold Tone Stainless Steel Tree of Life Round Pendant Necklace with Cable Link Chain Hypoallergenic, nickel and lead free stainless steel. Simple silver tone cable link necklace with round tree of life pendant. Chain measures 16 inches long with a 2 inch adjustment piece (extendable to 18 inches in length). Pendant measures approx. 3/4 inches across.