This ring is made using Tungsten Carbide . This modern, Tungsten Carbide ring is available in 8mm Width Personalized Laser Engraving (Only custom engraved on Tungsten Part outside or inside) Free Wooden Ring Box Nickel Binder, 100% Cobalt Free Tungsten rings are extremely scratch resistant & their natural color is gray. The black color Golden color, blue color , rose color on all Tungsten rings are Vacuum plated & never scratch All personalized rings cannot be exchanged/returned. All of my Tungsten rings are a comfort fit style, resulting in a very comfortable fit. I highly recommend going to at least 3 reputable jewelers to get measured for a comfort fit band. It would be best to ask to try on some “comfort fit” bands for the most accurate size. Shipping: Each ring is handmade once the order is placed. If there needs to be a rush on the ring, contact me & I can likely help you out. Care Tips: Tungsten with Wooden rings with the right care can last for a long time, but due to the fact that they are Tungsten & Wood Together Combined rings , Prolonged exposure to water will weaken the protective coating of the ring, occasional hand washing & showering will not effect the ring, but over long periods of time the finish will wear off. Avoid chemicals while wearing the ring & their life will be greatly extended. However, the finish of the ring can be re-applied & the ring will look brand new, contact me for re-finishing options. Returns & Exchanges: I accept returns & exchanges if there is no custom engraving , but the price of shipping will be your responsibility. Please make sure to know your ring size when placing an order Doctor Who Ring Gallifreyan Wedding Rings For Women Men 8mm Iconic Blue Dome Silver Edges Tungsten Band