Detailed Product Description 1.Item: Copper stud (Antique Metal)2.Material: copper, Aluminum, brass(contain 65% brass)3.Characteristic: ... ,7mm,8mm,9mm,10mm. 5.Color: Nickel Gold, Antique Copper, Antique Bronze, Black Nickel, Antic Bronze, Dull Nickel6.Shape: dome, square, round, sun etc ...