Ernie Ball Paradigm Acoustic Guitar StringsThe most tear-resistant strings everUltra-high-strength steel for durability and longevityEverlast nanotechnology and plasma-treated winding wire for corrosion resistance
Ernie Ball 2566 Aluminum Bronze Medium LightString Set for Acoustic GuitarMaterial: Steel core, wrap of aluminum/bronze alloyMade from copper and aluminum for better projection and clarityCorrosion-resistant, with enhanced lows and clear highs