Made of White Tungsten Carbide this ring by Thorsten has a hammered finish center, polished edges and dual offset grooves, which gives it great symmetry. Can be worn as a wedding band or promise ring by men or women. Engraving available and Does Not Delay Order. Available in 6mm and 8mm widths for couples who want a matching set. Tungsten Carbide is the newest and strongest metal for jewelry that does not scratch easily. White Tungsten is made by bonding rhodium to the surface of the tungsten ring making the ring look like platinum or white gold but with the durability of Tungsten. Comfort Fit - domed interior band slides over the knuckle easier with less friction.