Athena Jewelry Tungsten Collection 8MM Men's Stylish Anti-fatigue Black Tungsten Carbide Wedding Band Ring (10) Athena Jewelry Tungsten Collection 8MM Men's Stylish Anti-fatigue Black Tungsten Carbide Wedding Band Ring Genuine Tungsten Carbide, Laser Cutting and Polishing Technique Comfort Fit, Size Selectable, Comes with a FREE Ring Box. 30-Day Money Back Guaranteed by Athena Jewelry!