EXL110+, with its 10.5 gauge high E, is the ideal "step up" string set for players who are moving up from 10 to 11 gauge sets. Additionally, it's great for balancing tension between various scale length guitars. If you play 10s on a 25 1/2" scale guitar, try EXL110+ for your shorter scale length instruments to maintain more consistent feel and playability. XL Nickel Wound, D'Addario's most popular electric guitar strings, are precision wound with nickel plated 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.