Nanoweb Extra Light Acoustic Guitar Strings 2-Pack. Gauges: 10-14-23-30-39-47. Nanoweb coating permits acoustic guitar strings with the feel, bright tone, and punch of traditional strings. Elixirs are the first major innovation in guitar 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. Elixir Plain Steel Strings are covered with an ultra-thin, 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! In addition to an ultra-thin grunge-resistant tubular coating on the wound strings, Nanowebs now have a revolutionary Anti-Rust plating on the plain strings to extend their life too. Most players report that Elixir Strings keep sounding great 3 to five times longer than ordinary strings.