Two Tone Tungsten Ring TUR12 Two Tone Gold Plated Tungsten Ring, has a shank width of 8mm. This ring is a Comfort Fit, which makes this ring a pleasure to wear. Tungsten Carbide is a very hard, dense metal, twice as hard as steel. It always remains polished and is scratch resistant. TUR12 is available from ring sizes 5 to 15. Rings are supplied in a black ring box with white pad. Ring boxes are supplied in a sleeve, labeled with part number and suggested retail price, for your convenience.