Using these D'Addario EXP12 80/20 Bronze acoustic guitar strings is easy. First, loosen the old strings and remove them from your guitar. Then, thread the new strings through the bridge and the tuning pegs. Tune your guitar to the right pitch. When it comes to maintenance, wipe the strings with a clean cloth after each use to keep them in good condition. This will also help remove any dirt or sweat. Avoid leaving your guitar in extreme temperatures or high humidity as this can damage the strings. If you notice the tone starting to dull or the strings becoming hard to tune, it might be time to replace them. With proper care, these coated strings can last you a long time.