SET OF STRINGS FOR ELECTRIC GUITAR Pack of 3 sets of PURE BLUES PHR-10 electric guitar strings. Constructed with pure nickel wire on a round core wire to produce a distinctive warm and balanced sound with rich overtones and a vintage sound. They create the distinctive tone and feel of classic American rock and blues with chords that sound sweet and round, while leads have more punch and sustain. They feel soft and moldable. Pure Nickel Electric Guitar Strings wound on Round Cores. Pure nickel wound on round cores. Really vintage. Medium. 10-13-17-26-36-46.