"CLAYTON Cobalt Chrome Wedding Band with Scroll Pattern Ring by Benchmark - 8.5mm This Old World style comfort fit ring from our Cobalt Rings line by Benchmark is made from a cobalt chromium alloy, which is a metal that is as white as platinum, as strong as titanium and completely hypoallergenic. This one of a kind 8 mm comfort fit ring features a raised scroll design on a blackened cobalt background. This ring can be worn as a Wedding Band or Promise Ring. Larson Jewelers is proud to present Benchmark's cobalt chrome rings line, which is the ideal metal for couples who what their wedding rings to be as white as platinum or white gold, yet have much greater scratch resistance. Truly Free Benchmark Lifetime Sizing and Lifetime Warranty on cobalt chrome rings, no exchange|sizing fees, which are charged by other retailers.