Pirastro Permanent   viola string A-1 medium, steel core, chrome steel

Pirastro Permanent   viola string D-2 medium, steel core, titanium

Pirastro Permanent   viola string G-3 medium, steel core, silver

Pirastro Permanent   viola string C-4 medium, steel core, tungsten-silver

Pirastro Permanent   viola string D-2 strong, steel core, titanium

Pirastro Permanent   viola string G-3 strong, steel core, silver

Pirastro Permanent   viola string C-4 strong, steel core, tungsten-silver