XS Phosphor Bronze Acoustic Guitar Strings - Corrosion resistant and long lasting XS Phosphor Bronze strings have the longest life of any D'Addario acoustic string. The ultrathin XS film coating prevents fraying, peeling, and tonal dampening, giving you extended life on acoustic guitars. - Warm, balanced tone Phosphor Bronze wrap wire delivers the trusted D'Addario acoustic voice with warmth and even balance suitable for all genres. - Stays in tune and stronger strings With a NY Steel core and Fusion Twist technology, XS Phosphor Bronze strings offer greater break strength and improved tuning stability, staying in tune 131% better than standard acoustic strings. - Earn reward points XS Phosphor Bronze sets include a code on the recyclable, resealable VCI bag. Register the code to earn Players Circle points. Specifications and features - Type: Acoustic guitar strings - Core: NY Steel - Wrap: Phosphor Bronze - Coating: Ultrathin XS film coating - Technology: Fusion Twist - Packaging: Recyclable, resealable VCI bag Use scenarios - Live performance on stage where reliability and stable tone are essential for consistent sound. - Studio recording sessions where long string life and stable intonation reduce downtime and retuning. - Frequent practice or touring in varying environments, where durability and tone consistency matter between set changes.