Each Periwinkle Ball Stud Earring is expertly crafted with vintage lucite originating in the US during the 1960s to 1980s. An opaque finish results in an eye-catching color blend of blue and lavender purple. Each post earring measures 12mm in diameter and is equipped with surgical steel earring posts and backings for extra strength and durability. View the last photo to get an idea of size and scale when worn.