Gauges: 13-17-26-35-45-56. Elixir Acoustic Guitar Strings are covered with an ultrathin, space-age polymer tube that contacts the string on the tops of the windings only. This leaves the all-important winding-to-winding-to-core space free from the fear of the enemies of tone!Nanoweb coating permits strings with the feel, bright tone, and punch of traditional guitar strings. Elixirs are the first major innovation in strings in over forty years and they deliver what they promise: great tone and long life no matter what you put them on or how often you play.Most players report that Elixir Strings keep sounding great 3 to 5 times longer than ordinary strings.THIS LISTING IS FOR 7 COMPLETE SETS!! Save Big by buying in bulk!J Dubs Music Emporium is your destination for musical instruments and accessories, exclusive content, and helpful information on how to get the best quality sound you are after. Our goal is to provide you an online experience like no other, with top of the line products, exclusive money saving deals, and exclusive video and informational content to help make the right decision for your musical style.Co-owners Justin Wilson and Lightnin Rod Wilson are not just owners of J Dubs Music Emporium but musicians as well. They know first hand how important it is too any musician to have a unique sound tailored just to your needs. Lightnin Rod Wilson a world-renowned blues guitarist who has had many successful years in the music industry is now passing on his knowledge to you. With an extensive music blog with guitar styles, tips, and tricks you will always have what you need to progress in your style.Customer satisfication is our #1 priority so please do not hesitate to contact us with any questions, concerns, or if you just want to talk music we are always available.Were glad youve chosen to visit J Dubs Music Emporium and look forward to you joining the family of happy musicians who have done business with us