One of the Cobalt Rings is 6mm Wide and the other Cobalt Wedding Ring is 4mm Wide. Both Rings are expertly Made to order in the USA. The couple's rings are crafted out of Cobalt Chrome and have beveled edges. A high shine Polish Finish is done by hand and perfectly completes the cobalt rings. Both Rings are Available in sizes 4-17 in whole, half and quarter size increments.