D'Addario Kaplan Bass String Set, 3/4 Scale, Light TensionScaled to fit 3 4 size bass with a playing length of 41 3 4 inches (1060mm), these light tension strings allow for easier bow response. Kaplan double bass strings are aimed at the most discerning orchestral musicians. Kaplan strings offer a rich tonal color palette and superb bowing response in a beautifully balanced set. The set provides clarity and warmth from low to high registers and allows versatility and control throughout the dynamic spectrum.