Obligato Strings are among the most popular for musicians of classical bowed instruments. Renowned for their warm and powerful sound, quick and easy response, and resistance to climate changes. Obligato viola strings have a synthetic core but are made to feel and sound like gut strings when played. 

These great strings from Pirastro are available in  medium gauge up to 16.5"

A String - Aluminum Wound, Perlon Core (Ball End)
D String - Aluminum Wound, Perlon Core (Ball End)
G String - Silver Wound, Perlon Core (Ball End)
C String - Tungsten-Sterling Silver Wound, Synthetic Core (Convertible Ball-Loop End)