Fender has been a preferred choice of instrument brand by musicians everywhere for decades and when it comes to maintaining and upholding the quality of their branded guitars, Fender strings are the top of the line. Fender's 150 series strings are made from pure nickel and deliver not only a smooth feel, but rich and warm tone. Perfect for jazz, blues and classic rock guitarists, these original strings have been constructed to match the high-quality of Fender guitars and are unmatched in their design and crafting. Gauges: 10-13-17-26-36-46.