Pirastro Flexocor "Flexocor 92"*Basic Trial Sets limited to 2 per customer* Features The core material is a high tensile rope made from carbon steel which is wound with chrome steel. arco string with a quick response typical warm sound of the orchestra with a short sustain very quick response The choice of three gauges allows the bassists to set up their instrument individually. instantly playable and absolutely stable Set Variations Orchestra tuning Solo tuning E 2. 10m in medium