Prelude cello strings are solid steel core strings, insensitive to variations in temperature and humidity, and having excellent bow response. Prelude strings have the warmest sound available, thanks to a strong, cost-effective steel string design. Prelude is educators' favorite choice for student strings because of their unique blend of warm tone, economy and durability. Size 1/2 strings are gauged specifically for a size 1/2 violin with a playing length of 11 1/2 inches (290mm).