D'Addario XSAPB1253-B25

Bulkpack Western Coated Phosphor Bronze 012 -053 (25-set loose).
CORROSION-RESISTANT, EXTENDED LIFE - XS Phosphor Bronze strings have the longest life of any D’Addario acoustic string, with no fraying, peeling, or tonal dampening, thanks to the ultra-thin XS film coating.
WARM, BALANCED TONE - Phosphor Bronze wrap wire provides tried-and-true D’Addario acoustic tone, with beautiful balance and warmth suitable for all musical genres.
STAYS IN TUNE, STRONGER STRING - With a NY Steel core and Fusion Twist technology, XS Phosphor Bronze offers greater break strength and unmatched tuning stability—staying in tune 131% better than standard acoustic strings.
EARN REWARD POINTS - XS Phosphor Bronze bulk packs come with a code inside the box, which you can register to earn Players Circle points.
MADE IN THE USA – XS coated acoustic strings are made in the USA—drawn to our exacting specifications at our New York production facility.