This classic and elegant Tungsten Carbide wedding band by Thorsten features a traditional flat design with a finely polished finish with two grooves in its Black Ceramic inlaid center. Can be worn as a Wedding Band or Promise Ring. Engraving available! See Pictures for Details. Does Not Delay Order. Tungsten Carbide is the newest and strongest metal for jewelry that does not scratch easily. Black Ceramic will not scratch and does not lose its color. Comfort Fit - domed interior band slides over the knuckle easier with less friction.