P411021 Pirastro Obligato violin string set medium P411025 Pirastro Obligato violin string set medium P313721 Pirastro Obligato violin string E-1 medium P313921 Pirastro Obligato violin string E-1 medium P313121 Pirastro Obligato violin string E-1 medium P313821 Pirastro Obligato violin string E-1 medium P411221 Pirastro Obligato violin string A-2 medium P411721 Pirastro Obligato violin string A-2 medium P411821 Pirastro Obligato violin string D-3 medium P411321 Pirastro Obligato violin string D-3 medium P411421 Pirastro Obligato violin string G-4 medium P411831 Pirastro Obligato violin string D-3 thick