Modern Elements Carbon Fiber Inlay Tungsten Carbide 8MM Mens Wedding Band Metal Ring - Polished Finish 8mm Wide - 2.3mm Band Thickness Carbon Fiber Weave Inlay - Beveled Edge Polished Finish Hypoallergenic - Cobalt Free - Scratch and Fade Resistant Handcrafted For Unmatched Quality 30-Day Money Back Guarantee or Exchange