Pirastro Obligato strings have a core made from a modern synthetic multifilament fibre. These strings sound warm and full, yet have a brilliant, rich overtone spectrum and focused tone. They have excellent playability and response throughout the entire dynamic range.

Pirastro Obligato cello string composition:

A string: Chrome steel over steel

D string: Chrome steel over synthetic

G string: Tungsten over synthetic

C string: Tungsten over synthetic

In 4/4 size, medium gauge.