... .5# & 30mm Prong snap buttons.6). Pearl sizes: 7.8, 9, 10, 10.5, 11, 11.7, 12, ... 10.7mm11). Socket and stud sizes: 7.5, 7.8, 8.5, 9.5, 11, 13, 15, 17, 18, ... Prong sizes: 7.0, 7.2, 7.5, 7.8, 8.1, 8.2, 9, 9.2, 9.5, 9.7, ... SMOOTH18JAPANESE ANTIC BRASS NICKEL FREE19ANTIC COPPER20DULL ANTIC COPPER21BLACK ANTIC22DULL BLACK ANTIC23BLACK ANTIC SMOOTH24RED COPPER25DULL RED COPPER26RED COPPER ALLOY27ZINC28BLACK ...