The Classic string is made of a flexible steel core which gives it the warm and brilliant Jargar sound. They are the result of nearly 60 years tradition of hand made cello strings developed by a cellist to cellists. The Classic strings produce a warm and powerful tone. Their playability, sound qualities and durability has made them the perfect choice for both amateurs and professionals for nearly 60 years.Thickness: 0,76 mm (18,5 kp)