D"Addario Helicore Orchestral 3/4 Size Double Bass Strings are popular for their warm tone and longevity. The Orchestral strings are designed for arco playing and have been optimized for bow response. Pizzicato can be played on the strings and results in a warm sound with little sustain. These characteristics make them ideal for symphonic works. Scaled to fit 3/4 size bass with a playing length of 41 3/4 inches (1060mm), medium tension strings are optimized for a majority of players.