Description
Ernie Ball built its Cobalt line around a simple goal: give guitarists a wound alloy that talks back to their pickups with more clarity and punch than traditional nickel or steel sets. The Cobalt Extra Slinky set (item 2725) delivers exactly that, and this listing bundles twelve sets so you’re never caught scrambling for a fresh string mid-tour or mid-session.
Cobalt as a wrap material forms a notably stronger magnetic bond with your pickups than older alloys, which translates into a wider dynamic window — you’ll feel the difference between a whisper-soft passage and a dug-in power chord more distinctly. Highs stay articulate and cutting, while the low end fills out with extra body, giving the whole set a more three-dimensional voice. Harmonic content is richer too, so pinch harmonics and natural overtones ring out with more presence.
Beyond the tonal upgrade, Cobalt strings have a smoother, silkier feel under the fingers compared to standard sets. That reduced friction makes long bends, vibrato, and fast lead runs noticeably easier on the hands, without sacrificing the durability guitarists expect from Ernie Ball.
This Extra Slinky gauge set runs .008-.011-.014-.022-.030-.038, making it a great match for players who favor a lighter touch and easy string bending, whether for blues licks, expressive leads, or shred-style playing.
- Gauges: .008, .011, .014, .022, .030, .038
- Cobalt alloy wraps for enhanced pickup response
- Extended dynamic range and richer harmonics
- Smooth, silky feel for easier bending
- 12 individual sets included





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