... decorative buttons 2)Mertairals:brass 3)Never-fade color press stud buttons1.Lufa brand 2.Material:brass 3.Color:nickel ... free, anti-brass, anti-copper, gun metal,dull-nickel etcPress stud buttons Materials: brass Color platings: nickel/nickel free, anti- ... , 14, 15, 18, 19, 21, and 25mm Socket and stud sizes: 7.5, 7.8, 8.5, 9.5, 11 ... 15, 17, 18, 20.8, 23, 25.4, and 30mm Prong sizes: 7.0, 7.2, 7.5, 7.8, 8 ...