Description of Ring Brand New 2.0 - 2.3mm Thick 3 - 12 grams in Weight Hypoallergenic and Nickel free Cobalt Chrome Hallmarked High Polish Cobalt Chrome Hallmarked Comfort Fit (The most accurate method of determining Comfort Fit size is to first determine your Standard Fit size at a local jeweler, and then order a half size smaller.) 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm Size 4 to 14.5 can be selected from the above drop list. Suggested Retail: $289.00 Fact About Cobalt Chrome Rings · Cobalt Chrome rings are the hottest addition to our exciting collection of alternative metal rings. · They feature many unique properties and characteristics, the most obvious being a premium bright white color! · Cobalt Chrome rings are much whiter than tungsten and titanium rings and are often compared to platinum in appearance. · Since the bright white color is not just plating, Cobalt Chrome rings will stay white forever. The weight of Cobalt Chrome rings falls right between tungsten and titanium rings. · Cobalt Chrome is heavier than titanium but slightly lighter than tungsten. · Cobalt Chrome rings have a pleasing weight and feel that is very similar to gold rings. As a result, they are extremely comfortable to wear. · Cobalt Chrome rings does NOT contain harmful alloys such as nickel that cause allergic reactions. · Cobalt Chrome rings are less scratch-resistant than tungsten rings, but more scratch-resistant than titanium rings. It is about 4 times harder than Platinum, 5 times harder than Gold, and 4 times harder than Silver. Its hardness and reliable durability has proven it to be much more scratch-resistant than precious metal rings.