Flat Out Cool! This 8 millimeter (8mm) Cobalt Chrome wedding ring is all Satin Finished with an offset strip of solid 14k rose gold. Also made with yellow gold, white gold or platinum by request. The two black grooves are made with a lasting application. Cobalt Chrome is a very popular, new fine metal for wedding rings. Cobalt looks like shiny platinum, yet has extreme hardness. Your Cobalt Chrome metal will serve you well. It will stay beautiful & won't tarnish. Cobalt Chrome is also a hypoallergenic metal making it a great alternative metal option for your fine jewelry wedding ring. We can make this wedding ring for you in a variety of widths. **PLEASE READ** No Returns / No exchange. Lashbrook DOES DO NOT SIZE-EXCHANGE. Please research your ring size with comfort-fit sizing gauge.