Two main parts of the intervertebral discs are the outer ring (annulus fibrosus) and the inner gelatinous material. (nucleus pulposus). The outer ring consists of fibrocartilage, while the inner material shows many similarities to the articular hyaline cartilage both in its biochemical and histological appearance.
For this reason, Everything Wedding Rings recommends avoiding black tungsten wedding bands-with one exception. Titanium Kay has recently launched a new tungsten carbide wedding ring design with solid black inlay that is 100% scratch proof. So, if you are looking for a tungsten ring with black inlay features I highly recommend one of the Titanium Kay 2nd Generation rings.
Tungsten Wedding Bands and Tungsten Rings for Men and Women. At Larson Jewelers, we only carry the best jewelry from the most respected brand names in the industry, including items made of jewelry-grade tungsten carbide and nickel binder. Tungsten carbide is the most scratch-resistant metal known to man.