Pick your favorite color or get them all to match your favorite outfits. These comfort-fit men s Tungsten Carbide rings feature vibrant colors in the grooved center and interior band. Choose color: Blue Red Green or Purple. Black brushed finish with grooved center and high polish beveled edges. The 8-millimeter wide band features a contoured inner surface for a more comfortable fit with everyday use in mind. Tungsten is four times as sturdy and strong as titanium and features a scratch-resistant finish. Cobalt-Free and hypoallergenic. Will not cause skin irritations or turn your fingers green. Includes a complimentary jewelry ring box best for presentation and protection.