Corelli CO-3700-M violin string set 3/4, consists of CO-3701-M, CO-3702-M, CO-3703-M and CO-3704-MCorelli CO 3700 M violin string set 3 4, consists of CO 3701 M, CO 3702 M, CO 3703 M and CO 3704 M ball end E 1 string Although wound on a nylon core, Corelli Crystal strings position in the top of the range product thanks to the STABILON multifilament specially elaborated to provide the optimum characteristics of elasticity and elongation necessary for the manufacturing of strings for bowed instruments. Corelli's know how has allowed them to develop