D’Addario Pro-Art Composite Classical Guitar Strings are engineered for players seeking powerful tone, extended lifespan, and balanced projection. Featuring an exclusive multifilament composite core, these bass strings deliver warmth and richness while lasting 23 times longer than traditional classical strings. Each set includes traditional nylon trebles and an optional monofilament Composite 3rd/G string for enhanced projection and tonal balance. All Pro-Art trebles are precision-sorted using laser-controlled measurements, ensuring exceptional intonation and consistency across every set. Key Features: Composite core bass strings for increased power and longevity Includes optional composite 3rd/G string for greater projection Laser-sorted trebles for precise intonation and tonal accuracy Silver-plated copper windings for warm, resonant tone Normal tension for balanced tone and comfortable playability Looking for more Classical or Nylon Guitar Strings? Click Here!