Ernie Ball Earthwood 80/20 Bronze Acoustic Guitar Strings are crafted with 80% copper and 20% zinc wire wound around a hex - shaped brass - plated steel core wire. These strings deliver a clear, ringing sound accompanied by delightful overtones. They are a top choice for acoustic guitar players. Features: String Material - 80% Copper, 20% Zinc; Gauges - .012.5, .016.5, .024w, .034, .046, .056, Medium.

Using these Ernie Ball Earthwood acoustic guitar strings is easy. First, loosen the old strings and remove them from your guitar. Then, insert the new strings through the bridge and wind them around the tuning pegs. Tune the strings to the correct pitch. When it comes to maintenance, after each use, wipe the strings with a clean cloth to remove sweat and dirt. This will help extend their lifespan. Also, avoid leaving your guitar in extreme temperatures or high - humidity environments, as this can damage the strings. If you notice the sound quality starting to decline, it might be time to replace the strings.