A tried and true favorite style featuring a comfort fit shank and a slightly domed center created from cobalt, a silvery-white contemporary metal with uncompromising strength that will not chip or crack, is scratch resistant and hypoallergenic. As a lasting symbol of your commitment, this 8mm satin finished band is designed to last a lifetime without losing its color or luster. R10450 Cobalt, a bio-friendly material suitable for engraving Shatterproof, scratch-resistant, hypoallergenic 8mm, slightly domed comfort fit design Average weight is 9.08 grams Includes a custom Black Bow Jewelry Company gift box