Swiss cellist, Curdin Coray (photo), has been working in nylon string production since the 1960’s. He developed a lifelong fascination with high quality synthetic-core strings and a profound knowledge in technical engineering. 

In 2005 Mr Coray began his collaboration with For-Tune, an established string making company since 1992. Their extensive experience and latest technology melded with Mr Coray’s vast experience as a professional cellist and engineer led to the development of Opal strings. 

Currently, Opal Strings for cello are available for A and D.