These are 3/4 medium gauge strings.

D’Addario Says:

Kaplan Double Bass strings are designed for the most discerning orchestral musicians. Kaplan strings offer a rich tonal color palette and superb bowing response in a beautifully balanced set. These double bass strings provide clarity and warmth from low to high registers and allow versatility and control throughout the dynamic spectrum.

*Please note that some strings may require a special order, if this is the case you will be contacted regarding delivery timescales*