Bright, Warm Tone - The brass exterior wire delivers bold, clear sound with a warm character. Heavy Duty Build For Long Life - Built tough for frequent use, these acoustic guitar strings feature a strong hexangular steel core and precision brass winding. Anti-rust Coated Strings - Designed to resist sweat, corrosion, and humidity, the anti-rust coating helps these acoustic strings maintain a fresh tone and last longer—great for all playing environments. Complete 6-string Set - Includes standard medium gauges: .013, .017, .026, .036, .047, .056. A reliable guitar strings acoustic 6 string set that offers long-lasting playability and quality tone. Guitar String specification: Wound- Brass Core- Hexangular steel Gauge Type - Medium Interior - High-carbon steel hexangular alloy Interior Coating- Anti rust Weight- 1.1 oz String Gauges: .013, .017, .026, .036, .047, .056 Package Includes 1x Acoustic Guitar String Pack