Unique 5mm Tungsten Carbide Wedding Band with Blue Carbon Fiber Inlay (Sizes 5-13) 5mm Comfort Fit Cobalt Free Tungsten Carbide Band Blue Carbon Fiber Inlay Sleek Tungsten Ring - Not Resizable but we are more than happy to exchange it for you. Shape: Flat with Beveled Edges; Finish: Polished with Blue Carbon Fiber Inlay **Please verify your size before checking out**