Elixir Nanoweb 80/20 Acoustic Guitar StringsThe longest lasting tone night after night! Elixir Acoustic 80 20 Bronze Strings with NANOWEB Coating deliver a bright, lively tone together with extended tone life that players have come to expect from Elixir Strings. #1 acoustic guitar string Only coated string brand to protect the entire string with an ultra thin coating, keeping gunk out of the gaps between the windings Extended Tone Life players report their tone lasts longer than any other