The most popular jazz bass strings in the world.
Thomastik-Infeld Spirocore Bass Orchestra D string, medium gauge (mittel), for 3/4 and 4/4 basses with string lengths under 43.3". 70.5 pounds of pressure. Catalog # S37. Spiral core, chrome wound.
"Flexible multiwire spiral rope core. Less inertia, longer period of musical vibration. Equally effective when playing arco or pizzicato. Highly responsive, long lasting. SPIROCORE strings, widely recognized as “the reference standard”, are legendary for distinctive tone and playability." (Thomastik-Infeld)
Note: Packaging may differ from what is pictured here.