The 2-PACK Ernie Ball 2084 Paradigm 80/20 Bronze Acoustic Guitar Strings 13-56 are high-quality strings designed specifically for acoustic guitars. Made of 80/20 bronze with a roundwound winding, these strings offer a bright and balanced tone that is perfect for a variety of playing styles. With a 0.013 gauge and coated finish, these strings provide excellent durability and playability, making them a popular choice among guitarists. Proudly made in the United States, these Ernie Ball strings are sure to enhance the sound and feel of your acoustic guitar.