Instrument Strings
Thomastik PI42 Peter Infeld Cello D 4/4
Thomastik PI42 Peter Infeld Cello D 4/4, Single D-String for 4/4 Cello, Carbon steel core wound with multiple alloy, With ball end, Medium string tension
https://www.bizrate.co.uk/strings/thomastik-pi42-peter-infeld-cello-oid35704620047.html