Enya E6 E31 High Polymer Carbon Fiber Ukulele Strings for 21 23 26 Inch UkuleleDescription:Name: Enya 21 23 26 Inch Ukulele StringsColor: TransparentMaterial: PVDF+ Carbon Fiver+ SRPTYPE:\u3000E31 E6E31(21 23 Inch): A-1st 0.478mm                           B-2rd 0.630mm                           C-3rd 0.710mm                           G-4th 0.535mmE6(26 Inch):        A-1st 0.535mm                           B-2rd 0.660mm                           C-3rd 0.755mm                           G-4th 0.586mmNote: Enya E31 Strings suitable for 21 and 23 Inch Ukulele.Package:A package of Enya Ukulele Strings(Include A B C D four strings)