His & Her's 8MM/6MM Tungsten Carbide Wedding Band Ring Set with Blue Carbon Fiber Inlay Please use drop down menu to select 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!