When titanium is polished to a high sheen like this it reflects images from all directions. Made with aircraft grade titanium 6-4 (6% aluminum, 4% vanadium). Available in Matte, Polished, or Satin finish, 4mm - 8mm width. Contour fit, for a more comfortable fit (the inside edges are perfectly shaped for maximum comfort yet the middle of the inside is flat such that the ring does not rock on the arc in the middle of the ring or sit too high on the finger. Titanium is a performance metal, used extensively in aerospace where strength and weight really count. Unique and cutting-edge, titanium is the stuff of dream rings--rings that will last and can be passed on for generations to come. Finish Types Polished: Traditional, high shine polished finish. Satin: Right between Polished and Matte, it glows, Satin is subtle and beautiful. Matte: The matte finish is a more subdued, metallic and less reflective look.