Swinger 8mm Black Matte Finish / High Polish Bevel Edge Men's Tungsten Ring Wedding Band (Available in Sizes 5 to 15) Please Email sizes Swinger 8mm Black Matte Finish / High Polish Bevel Edge Men's Tungsten Ring Wedding Band (Available in Sizes 5 to 15) Please Email sizes Black Tungsten Carbide is completely cobalt-free and ranks next to Diamonds as the 2nd hardest material in the world 100% Satisfaction Guaranteed. Swinger Black Ring for Right Hand