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Play like a pro with
these revamped classics.
Ernie Ball 2721 Cobalt Regular Slinky
Electric Guitar Strings are a new spin on
Ernie Ball’s best selling set of strings
which have been played by the likes of Eric
Clapton, John Mayer, Steve Vai and many
more. The Cobalt Series is clearly an
improvement on its classic nickel-wound
counterpart giving the player increased
sustain, clarity and output. In addition,
they resist sweat and moisture better and
have unmatched flexibility when compared to
other nickel wound strings.