P441020 Pirastro Obligato double bass string set orchestra P441120 Pirastro Obligato double bass string G-1 medium P441220 Pirastro Obligato double bass string D-2 medium P441320 Pirastro Obligato double bass string A-3 medium P441420 Pirastro Obligato double bass string E-4 medium P441520 Pirastro Obligato double bass string B-5 medium P441200 Pirastro Obligato double bass string E-2 solo medium P441300 Pirastro Obligato double bass string B-3 solo medium P441400 Pirastro Obligato double bass string F#-4 solo medium