Juego / Guitarra Clásica Pack with 3 string setsEJ46Trebles: clear nylonBasses: nylon multifilament/silver-plated woundgauge: .0285 .0327 .0410 .030 .036 .044Pro-Arte strings are D'Addario's premium classical guitar strings. All Pro-Arte treble strings are sorted by a sophisticated computer-controlled laser machine which performs diameter/tension measurements and quality checks, insuring true sounding, precise trebles in every set. Pro-Arte basses are wound using silverplated copper on a multi-filament nylon core for consistent, warm-yet-projecting tone.Cada cuerda aguda Pro-Arté de D'Addario es medida 200 veces con un sofisticado sistema láser controlado por ordenador para las pruebas de calidad en la determinación de la tensión exacta de la cuerda.