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