ProSteels are D'Addario's brightest and most magnetic bass strings.
- Specialized steel alloy
-Harmonically rich, brilliant high-end coupled with deep, tight lows that work in tandem to create the coveted "Piano Tone" steel players crave
- Great for both articulate fingering or aggressive picking
- Preceision wound on a hexagonal core
- Gauges: .055-.075-.090-.110