The Thomastik Spirocore Cello C string has a flexible multiwire spiral rope core and is wound with Chrome. The C string is often used in a mix of strings due to its powerful and responsive sound.
The spiral rope core has greater elasticity, therefore a higher period of vibration than other rope core strings. The sound of the Spirocore strings in general is round, homogeneous and powerful. They are highly responsive and long lasting. Spirocore strings are widely recognised for their almost legendary sound, distinctive tone and playability.