Sapphire Tungsten 8mm Black Finish Two-Tone Comfort Fit Wedding Bands Rings for Men Patented Sapphire Tungsten is the next generation wedding band combining Tungsten Carbide with Genuine Sapphire and other High-Strength Alternative Metals Stylish two-tone matte black and silver men's wedding ring; Black interior Scratch Resistant and Shatter Resistant Comfort Fit Imported