viola string set (string length 37cm), includes TH-VI-21
viola string A-1 (string length 37cm), carbon steel, chrome wound, removable ball end
viola string D-2 (string length 37cm), synthetic core, silver wound
viola string G-3 (string length 37cm), synthetic core, silver wound
viola string C-4 (string length 37cm), synthetic core, silver and tungsten wound