DAddario XL Nickel Wound Electric Guitar strings are world-renowned as "The Players Choice" amongst players of all genres and styles. XLs are precision wound with nickelplated steel on a hex-shaped core, resulting in strings with a distinctive bright tone and excellent intonation. Diameter Tension Item# Note inches mm lbs kg PL010 E 0.010 0.25 16.2 7.35 PL010 E 0.010 0.25 16.2 7.35 PL013 B 0.013 0.33 15.4 6.98 PL013 B 0.013 0.33 15.4 6.98 PL017 G 0.017 0.43 16.6 7.53 PL008 G 0.008 0.20 14.7 6.67 NW026 D 0.026 0.66 18.4 8.34 PL012 D 0.012 0.030 18.5 8.39 NW036 A 0.036 0.91 19.5 8.84 PL018 A 0.018 0.46 23.4 10.61 NW046 E 0.046 1.17 17.5 7.94 NW026 E 0.026 0.66 23.2 10.52