C.F. Martin MA140PK3 3-Pack Authentic Acoustic 80/20 Bronze Light TensionBronze is an alloy of copper and zinc (80% copper, 20% zinc)Tin-plated core wire for enhanced corrosion resistanceSuperior performance with higher tensile strength and balanced tone
Martin Authentic Acoustic Superior Performance SP StringsHigher tensile strength, tinned core wire for a fuller tone and increased tuning stabilityMaterial: Silk & SteelGauges: 0115, 014, 023, 028, 038, 047Bright and rich tones, corrosion-resistant and versatile
Martin Authentic Acoustic Lifespan 2.0 StringsAvailable in 80/20 Bronze and Phosphor Bronze stringsProtects the core and winding wire without affecting the tone