YEAHES&reg; Curve Necklace with Stain Steel Base and Black Onyx/White Shell Beads/Purple Crystal (Black Onyx) The jewelry accord with the eu environmental requirement Fashion Design Stainless Steel 316L Chain Necklace with Lobster claw clasp Optional three materialsBlack Onyx/White Shell Beads/Purple Crystal Length: 19inches Resistance against Wear & Tear