Frank S.Burton 6mm 8mm White/Blue Carbon Fiber Tungsten Carbide Wedding Band Ring for Men Women Size 4.5-15 Silver and Blue tungsten carbide wedding ring, comfort fit for men and women Workmanship: white grey carbon fiber inlay with beveled edge, 6mm and 8mm wide for couples who desire a matching set Best value: unisex tungsten wedding band, accurate size & anti-allergic to your finger, best gift for engagement, wedding, promise, Christmas, valentine's day Durable & Heavy: tungsten ring would never bend, it is strong and tough Service and Insurance: friendly customer service and life-time quality guarantee including 30 days money back and exchange