Enjoy playing your acoustic guitar longer with these strings by Elixir. They are 80/20 bronze and feature a Nanoweb coating that gives your guitar a bright and lively tone. The thin coating sounds and feels like uncoated strings, but helps to prevent rust and deterioration as well as keeping dirt and debris away from the gaps between the windings. The extended life of these strings means less hassle for you changing strings and more time to play.