12-53 Light, XS PhBr - D'Addario

These 12-53 Light strings are phosphor bronze acoustic guitar strings with a NY Steel core and Fusion Twist technology, known for their longevity and tuning stability.

• The description claims that these strings have the longest life of any D’Addario acoustic guitar string.
• The description claims that XS coated acoustic guitar strings have incomparable break strength and tuning stability.