Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings

Sku #H79090000000000

45 day price guarantee, 45 day return policy, 100% secure shopping


MSRP: $17.00   You Save: $7.01 (41%)

In Stock & Ready To Ship

Restrictions Apply (Details)

Add to list
See All Ernie Ball .009 Gauge Electric Guitar Strings
Ernie Ball

The most popular Slinkys with a Cobalt twist.

Ernie Ball 2723 Cobalt Super Slinky Guitar Strings are round-wound for maximum clarity and serious punch. The Cobalt Super Slinky set 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.

"Ernie Ball Cobalt Strings sound and feel better than anything I've ever played! You have to check these out!" - Slash.
"Cobalt Strings feel incredibly silky under my fingers and deliver more punch, output, and clarity than normal strings!" - John Petrucci.
"There's a certain degree of clarity and punch you get from Cobalt Strings that I haven't heard tonally from any other strings I've played." - Joe Bonamassa.

All Ernie Ball strings are precision manufactured to the highest standards and the most exacting specs to assure consistency, optimum performance and long life. Made in the USA.

Gauges: 9-11-16-24w-32-42.


Start hearing and feeling the Cobalt difference today. Order now!

review resources
write a review


by PowerReviews
Ernie Ball2723 Cobalt Super Slinky Elecric Guitar Strings

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


Very disappointed!!

By J.P.English

from mcallen, texas

About Me Professional Musician


  • Good Tone


  • Breaks Easy

Best Uses

    Comments about Ernie Ball 2723 Cobalt Super Slinky Elecric Guitar Strings:

    Very disappointed.. strings would break just putting them on my tele's.. had to go through 3 sets just to get one guitar strung!! Very expensive experiment..

    Comment on this review