Fender Classical/Nylon Guitar Strings Fender 100s are high quality nylon strings for classicalguitars. Weve added ball-ends to make our 130s forfolk guitars. We start with the best nylon material we can find and usestate-of-the-art manufacturing to make you the highestquality strings possible. Our basses are wound in puresilver for an outstanding clarity that can bring even darkand dull sounding guitars to life.