The gauges are 11-14-18P-28-38-48

Next-generation guitar strings

A new alloy formulation gives Ernie Ball Cobalt guitar strings higher output, a better sound, and a longer lifespan. Magnets in pickups are more attracted to cobalt strings because of their special iron/cobalt blend. You'll instantly notice the incredible comfort Ernie Ball Cobalt strings offer - silky, pliable under your fretting fingers; your pick will glide over the strings, allowing you to execute fast passages with ease. Plug it in and you'll hear increased power, beefy yet defined lows, improved midrange focus and harmonics, and crisp highs. Don't miss out on Ernie Ball Cobalt strings - you're gonna love them!

At a Glance: Ernie Ball Cobalt Guitar Strings

The crème de la crème of beta testers

You get a better sound and higher output with the cobalt formula

A cobalt lasts a long time

The crème de la crème of beta testers

Steve Morse, John Petrucci, Randy Jackson, Tony Levin, and Slash were among the stars tapped to be beta testers for Ernie Ball's Cobalt strings. He noted that the Cobalts feel "softer" under your fretting fingers (he called them "buttery") and have increased power, clarity, and sonic balance. Slash notes that - before being plugged in - the Cobalts "have an entirely different feel than normal strings." He describes it as "bouncy and pliable," and "a lot of fun to bend." As amplify the strings, Slash reported that the Cobalts were just as bright, but they were "guttural," with a lot more "growl."

Higher output and better sound are provided by the Cobalt formula

Ernie Ball practically invented rock guitar strings half a century ago. With Cobalt, they've reinvented them. After exhaustive testing of over 350 alloy combinations, the company found an optimal formula that - compared to conventional strings - produces higher output, beefier lows with greater definition, improved midrange focus, shimmering harmonics, and a longer sustain. You get a brighter sound without inducing harshness by turning up the treble on your amp.

The life of cobalt is longer

In comparison with other guitar strings, Ernie Ball Cobalt strings last longer and maintain their brightness for a longer period of time. The Cobalts "still sound bright" even after several weeks of daily use - sweaty hands and all - according to Steve Morse. In other words, Cobalts have a better sound, a higher output, and a lower maintenance cost than traditional alloy formulations. Try a set of Ernie Ball Cobalt strings - you'll love them!

Features of Ernie Ball Cobalt Guitar Strings:

Strings with more punch and output

A beefier low end with more definition and growl

Midrange focus, harmonics, and sustain are improved

Compared to conventional strings, these strings last longer

American-made

You won't be disappointed with Ernie Ball Cobalt guitar strings: they're the ones the pros swear by