This listing is for our 7.5mm Hawaiian Heirloom bangles. The material is 14 kt gold filled, so pieces do not tarnish or change color. They are approximately 7.5mm in width and are quite heavy and durable. As you can see in the photos the bangles each have a flower scroll design engraved throughout. Bangles are cut and soldered to size so please use measuring example attached to get accurate size.