Ernie Ball Slinky Flatwound Bass Strings combine the smooth feel of traditional flats with the modern power of Cobalt. Featuring a SuperBright Cobalt Ribbon wrap, Cobalt Underwraps and optimal core to wrap ratio, the new Flatwound Bass strings are the first flat that actually feels like a flat but sounds like a round.

-Propietary blend of iron and cobalt attracts the magnets in your pickups more than any other alloy available -SuperBright cobalt ribon for a superior sheen and feel -Cobalt underwraps adds clairty and output -Optimal core to wrap ratio for comfortable tension and playability