Nickel-plated steel wire on a hexagonal core.;Round sound, excellent response and tremendous precision. Very stable tuning, especially recommended for use with vibrato systems. Particularly suitable for rock, pop and funk, but also for blues with its special 11/49 gauge.;No single strings available!;H50XL7 Hexagonal Explosion nickel plated extra-light .009-.054w 7-strings;Extra-light .009 .011 .016 .024w .032w .042w .054w;