D'Addario XL ProSteels utilize a highly magnetic, corrosion-resistant steel alloy that delivers super-bright tone without shrill overtones. They offer a palette of harmonically rich, brilliantly penetrating highs combined with pronounced, tight-and-tough lows. If you're looking for more crunch, bite, and sustain, ProSteels are the choice for you.
Unique highly magnetic steel alloy offers brighter, crunchier tone and increased sustain
Environmentally friendly, corrosion resistant packaging for strings that are always fresh
Made in the U.S.A. for the highest quality and performance