... pewter, nickel free dull-nickel, and more Pearl sizes: 7.8, 9, 10, 10.5, 11, 11.7, 12, 12.5, 13 ... , 14, 15, 18, 19, 21, and 25mm Cap sizes: 8, 9, 10, 11, 11.7, 12, 12.5, 13, 14, 15 ... and stud sizes: 7.5, 7.8, 8.5, 9.5, 11, 13, 15, 17, 18, 20.8, 23, 25.4, and 30mm Prong ... sizes: 7.0, 7.2, 7.5, 7.8, 8.1, 8.2, 9, 9.2, 9.5, 9.7, 10, 10.2, 10.5, 11, 11 ...