His & Her's 8mm/6mm Tungsten Carbide Wedding Band Ring Set, Blue Carbon Fiber Inlay Please use drop down menu to choose your desired sizes. Genuine Tungsten Carbide (Cobalt Free) Wedding Band Ring Hypoallergenic - Comfort Fit This ring can be worn as a Wedding Band or Promise Ring by men or women Beware of Imitated Replicas - 30 Day Money Back Gurantee!