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 rou Features:

• 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