Acoustic guitar strings made of 80/20 bronze, providing a deep and bright tone. - Number of sets: 3 sets - Gauge: Light gauge (.012-.053) - Material: 80/20 Bronze - String diameters: E string: .012, B string: .016, G string: .024, D string: .032, A string: .042, E string: .053 - Tension: Total tension: 156.42 lbs Thank you for viewing.