Steel core, handmade in Copenhagen since 1956. Warm and powerful tone with excellent playability and durability. A trusted choice for amateurs and professionals for nearly 70 years. 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.