BOSS | Tungsten Ring Padauk Center Groove DomedTungsten Carbide Ring with Domed Center Groove and Brush Finish. This traditional 6 mm or 8 mm wide Tungsten Carbide Ring has a domed brush finished surface and a highly polished groove around the center of the ring, which provides a beautiful contrast. This elegant design, once reserved for platinum is now available in Tungsten. Ring measures 6mm and 8mm wide and has a Comfort fit interior for more comfortable wear. This Tungsten ring is an ultimate