Prelude strings are the educator's preferred choice for student strings due to their unique blend of warm tone, durability, and value. Prelude strings have the warmest sound available in an affordable, solid steel core string design. Unaffected by temperature and humidity changes, they have excellent bow response • Available for violin, viola, cello, and double bass • Best-selling steel core string • Engineered for unparalleled longevity and durability • Balanced tension for a comfortable feel • Great for classical, fiddle, jazz, and alternative styles • All D'Addario strings are designed, engineered, and manufactured in the USA