JUEGO CUERDAS PARA GUITARRA ELECTRICA Electric Guitar 7String Set. DRAGON SKIN. Coated Quantum Nickel Electric Guitar Strings. Medium 7 String 1056: 10, 13, 17, 26, 36, 46, 56. Medium. Round Core Wire on a Ball End with Accurate Core Technology and a Clear Coated Quantum Nickel Wrap Wire.