I purchased this new and have never used it. I only opened the box to take pictures, but the strings themselves are individually packaged and unopened. D'Addario EXL120-3D are nickel wound light gauge strings that provide a bright tone and perfect intonation. - Brand: D'Addario - Model: EXL120-3D - String Type: Nickel Wound - Gauge: Light Gauge - Features: Corrosion Barrier Sleeve - Package Contents: 3 sets