Larsen Original viola C strings are a go-to option for building a strong viola string set up, offering projection and versatility with extended, consistent performance. They are available in medium and heavy tension, with medium tension delivering brightness and power, while heavy tension produces more volume and higher resistance to the bow. Original viola C strings are made with a multi-filament nylon core and wound with precision-rolled silver flat wire. They come with a ball end and are designed for instruments 15" to 16-1/2".