Ernie Ball Slinky Flatwound Bass Strings combine the smooth feel of traditional flats and the power of Cobalt. Featuring a SuperBright Cobalt ribbon wrap, Cobalt underwraps and optimal hex-core to wrap ratio, the new Flatwound bass strings are the first flat that actually feels like a flat and sounds like a round. Gauges .045, .065, .085, .105

BALL END

Our ball ends are made using brass wire rod which is machined and cut to exacting specifications to ensure a precise fit and function.

WRAP WIRE

Slinky Flatwounds feature a SuperBright Cobalt Ribbon wrap and Cobalt Underwraps providing a round sound with a flat feel.

CORE WIRE

These strings feature an optimal core to wrap ratio for a slinky, supple feel that provides the playability and sustain of roundwounds.