Acoustic guitar strings constructed with 80/20 (80% copper, 20% zinc) bronze wrap wirePlayed for a crisp, bright tone with an expressive, vibrant presenceUltra-thin NANOWEB Coating provides a more traditionally textured, “uncoated” feelOur patented coating technology protects against common corrosion, extending tone life longer than any other brand’s coated or uncoated strings (Elixir Strings player survey)Extra Light gauge: .010 .014 .023 .030 .039 .047