7MM Wellingsale&reg; LUXE Series Cobalt Free, Comfort Fit Flat Tungsten Wedding Band Ring with Grooved Lines and Smooth Rounded Edges in Brushed and Polished Finish for Men and Women (Multiple Sizes Available) Enjoy your jewelry, scratch and blemish free Tungsten Carbide is one of the most scratch resistant materials known to man** Heavy in weight, extremely scratch resistance, and excellent value for money Order yours today or browse our fine selection of Tungsten Jewelry Swift and Speedy shipping. Complete with elegant jewelry gift box and Retail Packaging. Quality you can expect from Wellingsale All jewelry purchases made with Wellingsale include an industry leading lifetime warranty from manufacturing defects. Manufactured using Wellingsale quality standards. Free from cobalt making this item tarnish proof.