Earhoops 16mm wide 2mm thick, 9ct Gold. Almost all Gold earhoops for sale in Australia are imported, mostly from Italy, and virtually all are hollow. These earhoops are made in Sydney and are not hollow, rather are they solid, 2mm thick. They can not be wrecked with a fingernail, and when the click of closure is felt or heard, they are properly shut and under normal circumstances can be left on for days at a time.