2-Strand Black Onyx Stone Beads Sterling Silver Box Chain Necklace, 16"+2" Extender Two strands fasten with a single lobster clasp 925 solid sterling silver chain and findings imported from Italy 6mm black onyx (dyed) stone beads threaded onto box chain Two strands joined by one clasp and one 2 inch sterling silver extender chain Hallmarked 925 You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!