Synthetic core with powerful projection, brilliant tone color, and a very fast bow response. Dense, fine sound texture for precise articulation. 4/4 size, medium gauge.
 
Strings should generally be changed every 6–12 months, though students usually change them less frequently. Even if strings haven't broken, they gradually lose their brilliance and responsiveness — if your instrument sounds dull or takes longer to settle in tune, it's time for a fresh set.