Aluminium on synthetic/fibre core. Gauges as in the options
2 out of 3 found the following review helpful
Pros: I use Larsen strings for G,D&A with a Pirastro Gold Label E. I find this combination complements each other perfectly and provides a warm, rich tone with excellent response on my particular instrument.
Cons: Expensive (but worth it). Takes a while to settle (but worth it).