King Will Nature Mens 6mm Black Tungsten Carbide Ring Inlaid with Opal Fragments Plated Wedding Band Shiny Opal fragments exquisitely inlay the black plated tungsten carbide ring. Perfect 6mm width and size 6-14 are available, suitable for both men and women. Surprise for the receiver as wedding bands, engagement rings, birthday giftd, Christmas gifts and so on. King Will's jewelry box, save your giftwrap service fee, and help you store the ring much safer & longer. If you have any question, please post into "Customer Questions & Answers" at the bottom of this page.