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 ElixirStrings. Elixir Strings, the #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 string, uncoated or coated Consistent performance and tone ready to play whenever you are Smooth feel that is easy on your fingers and enhances playability Reduced finger squeak good for both performance and recording Anti-Rust Plated Plain Steel Strings resist tone-deadening corrosion, ensuring a Longer life for entire set With less hassle and expense of frequent strings changes, spend more time making music