Ernie Ball 2815

Would buy again. My favourite strings ever.
Flat wound metal strings are like a fusion of the warm and smooth tone of a black nylon string and the metal percussive power of metal strings. I personally don't like the overtones and extra noises of the round wounds and the problem is fixed using Flat wounds. Ideal for music styles like Funk, Disco, Jazz, and that doesn't mean you can not play some rock. You can use these strings on a fretted or on a fretless bass. In fact, most of the Funk/Disco music back in the 70's was recorded using Flat wounds. Flat wounds eliminate excess noise and they allow more versatility such as sliding and bending. And they are still metallic so the percussive power is still there, from slap bass to smooth jazz.