Stud Earrings Components, Brass Head and Stainless Steel Pin, Lead Free, Cadmium Free and Nickel Free, PlatinumSize: about 12mm long; Head: about 8mm in diameter, Nickel Free.These are ear studs made of stainless steel. You can paste some jewelry ornaments, such as gemstone cabochon, rhinestone beads, to the ear stud findings. Wearing it will increase your ear scenery. It is a stylish and economical choice.