Acoustic guitar strings with 80/20 bronze and Nanoweb coating for long-lasting tone. This item has been stored at home after purchase. Although it is new and unused, it has been opened for photography. - Brand: Elixir - String Type: Acoustic Guitar Strings - Material: 80/20 Bronze - Coating: Nanoweb - Gauge: 13-53 - Features: Long-lasting tone - Model: HD Light Thank you for viewing.