Genuine Thomastik-Infeld product.
- Nickel flatwound roundcore Extended durability High output fundamentals Smooth and balanced Highly flexible steel core Gauge: .043, .056, .070, .100, and .136
- Nickel flatwound roundcore Extended durability High output fundamentals Smooth and balanced Highly flexible steel core Gauge: .043, .056, .070, .100, and .136