A tried and true favorite style featuring a half round double grooved design with a satin center and polished edges 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 6mm comfort fit band is designed to last a lifetime without losing its color or luster. R10646-13 Cobalt, a bio-friendly material suitable for engraving Half rounded, comfort fit design 6mm width, polished and satin finish Weight is Approximately 6.35 grams Includes a custom Black Bow Jewelry Company gift box