THOMASTIK INFELD SPIROCORE for Double Bass have got a lexible multiwire spiral rope core. Less intertia, longer period of musical vibration. Equally effective when playing arco or pizzicato. Highly responive, long lasting. Spirocore strings, widely recognized as "the reference standard", are legendary for distinctive tone and playability.
On request there are also available: C1-, H2-, C1- Extension, Cis1 und Fis1.