ESXL120 strings are constructed with ball ends on both ends of the strings for use on double ball-end guitars. They are precisely engineered and wound to Steinberger specifications .

XL Nickel Wound, D'Addario’s most popular electric guitar strings, are precision wound with nickelplated steel onto a carefully drawn, hexagonally shaped, high carbon steel core. The result, strings with long lasting, distinctive bright tone and excellent intonation, is ideal for the widest variety of guitars and musical styles.