If you're looking to brighten up that acoustic tone, Fender 80/20 bronze strings deliver articulate sound and great feel, making them perfect for an acoustic guitar with a naturally dark tone. Made from 80% copper and 20% zinc, these strings will not only bring your acoustic sound to life, but also last throughout the most enduring performances.  .010/.010, .014/.014, .008/.022, .012/.030, .018/.040, .026w/.050.