Roosebeck Lyre Harp String Set (8) Tuning and String Gauges; - - 1: E5 .010 0.25 - Steel; 2: D5 .012 0.30 - Steel; 3: C5 .014 0.36 - Steel; 4: B4 .015 0.38 - Steel; 5: A4 .022w 0.56 - Nickel; 6: G#4 .023w 0.58 - Nickel; 7: F4 .024w 0.61 - Nickel; 8: E4 .028w 0.71 - Nickel