These stud earrings are made with clay and gold plated brass. They are minimal and modern, but bright enough to make a statement. They measure: 20mm x 6mm and are 1.5mm. They are made of gold plated brass, clay, and are finished with nickel / lead free, gold plated posts and rubber backing. They also come in other colors: Speckled White, Speckled Gray, Red, Black.