The Elixir Acoustic Guitar Strings are designed to provide exceptional sound quality and durability. These roundwound strings are coated with a special polyweb anti-rust coating, ensuring lasting performance even in humid environments. Made in the United States, these strings are suitable for acoustic guitars and come in a convenient box of 4. With the trusted Elixir brand and high-quality construction, these guitar strings are a popular choice among musicians looking for reliable and versatile options.