D'Addario DZ610-34M double bass string set 3/4, mediumD'Addario DZ610 34M double bass string set 3 4, medium Zyex synthetic core strings produce an extremely warm, rich sound. Zyex strings are made from a new generation of synthetic material, creating strings that are incredibly stable under drastic climatic conditions. Settling in on the instrument within a matter of hours, Zyex bass strings provide rich, gut like, complex tone, combined with power and clarity for both pizzicato and bowing. Zyex bass