Helicore Orchestral bass strings are multi-stranded steel core strings that produce a warm tone quality with excellent bow response. The core design makes for strings that are very easy to play under the left hand. Damping is optimized for arco use, but they also work well for pizzicato applications where a very warm, less-sustaining sound is desired. The 1/8 scale strings are gauged specifically for 1/8 size bass with a playing length of 31 3/4 inches (805mm).

Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), light tension strings allow for easier bow response.
Helicore Pizzicato bass strings are multi-stranded steel core strings that produce a brighter tone quality than the rest of the Helicore bass line. The core design makes for strings that are very easy to play under the left hand. Damping is reduced to create maximum sustain and "growl".
D'Addario, the world's largest manufacturer of musical instrument strings, is known worldwide for unsurpassed quality and consistency. D'Addario continues to develop and manufacture exceptional strings and accessories for violin, viola, cello and double bass, incorporating innovative packaging that reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set.