Thomastik-Infeld AC211 Acoustic Guitar Strings: Plectrum Series 12 String Set E, E, D, D, G, G, D, D, A, A, E, E Used by Students and Professionals around the world This set includes: (2 x) .011, (2 x) .015, .024, .090, .032, .014, .043, .018, .052, .023 Genuine Thomastik-Infeld Product