Flexible multiwire spiral rope core. Less inertia, longer period of musical vibration. Equally effective when playing arco or pizzicato. Highly responsive, long lasting.
The strings are made from the following materials;
E string (S9) : Spiral core, aluminum wound
A string (S10) : Spiral core, chrome wound
D string (S12) : Spiral core, chrome wound
G string (S13) : Spiral core, chrome wound