A new model enriches the already existing range of Synthesis double bass strings: BSN920-Synthetic & Bronze. The new set of strings are made with a bronze flat wire wound on a synthetic nylon core. Available light or medium. This special mix of materials captures the rich tone of nylon and the sustain of steel, making them ideal for the most diverse styles of slap, rock, rock-a-billy, bluegrass and country & western swing… nothing is impossible for strings Synthesis !