FRAENER Flat Polished Finish Black Ceramic Ring - 2mm - 12mm The sleek flat style of Black Ceramic Rings are subtle yet striking. This ring can be worn as a Wedding Band or Promise Ring and is available in 2mm, 4mm, 6mm, 8mm, 10mm and 12mm wide for couples who wish to have a matching pair. Pictures of all available widths can be seen right above. Black Ceramic Wedding bands are just as scratch resistant as tungsten carbide rings. They are black all the way through and will never fade. Black tungsten can fade over time. Truly Free Lifetime Sizing and Lifetime Warranty on all tungsten rings, no exchange|sizing fees, which are charged by other retailers.