Ernie Ball Earthwood 5-String Banjo Bluegrass Loop End 80/20 Bronze strings are made from 80% copper, 20% zinc wire wrapped around hex shaped tin plated steel core wire. The most popular acoustic guitar strings provide a crisp, ringing sound with pleasing overtones.
 
  
 
 
  Gauges .009, .011, .013, .020w, .009
 
  
    Ernie Ball Earthwood 5-String Banjo Bluegrass Loop End 80/20 Bronze strings are made from 80% copper, 20% zinc wire wrapped around hex shaped tin plated steel core wire. The most popular acoustic guitar strings provide a crisp, ringing sound with pleasing overtones.
 
  
 
 
  Gauges .009, .011, .013, .020w, .009