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Ernie Ball

Ernie Ball 2721 Cobalt Regular Slinky Electric Guitar Strings (3-pack)

  • Based on 165 reviews
Condition: New
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Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Sep 5
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Description

Engineered to maximize output and clarity, Ernie Ball Cobalt Slinky Guitar Strings are the latest innovation in string technology. Seeking to provide guitarists and bassists with a new voice, Cobalt strings provide an extended dynamic range, incredible harmonic response, increased low end, and crisp, clear highs. Cobalt provides a stronger magnetic relationship between pickups and strings than any other alloy previously available. Cobalt Slinkys are also soft and silky to the touch, making string bending a breeze.

Brand: Ernie Ball


String Gauge: .01


Color: Clear


Instrument: Electric Guitar


String Material Type: Cobalt


Item Weight: 3.2 ounces


Product Dimensions: 4.5 x 0.25 x 4.5 inches


Item model number: P03721


Is Discontinued By Manufacturer: No


Date First Available: March 25, 2014


Color Name: Clear


String Gauge: .01


String Material: Cobalt


Material Type: cobalt


Size: Regular


Standing screen display size: 6 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Fantastic Strings
I used DR strings for years until I tried Ernie Ball Cobalt strings. These strings have fantastic tone and they feel very smooth under your fingers. Everyone has their own idea about how long they should go between string changes. If I’m playing gigs regularly I change strings after every show, otherwise I change them about every three months. Cobalts last for those intervals easily. Tone, harmonics, feel, and durability, these strings have it all. I don’t know what more you could ask for from a set of strings. ... show more
Reviewed in the United States on September 2, 2022 by michael newton
    • Great Strings
Kind of a noob but have been playing long enough that I've tried a few types of strings and thought, "there's not much difference". These are the first ones that felt and sounded noticeably better. Stretched quick and stay in tune. Feel much better than regular slinky EBs and just feel way more responsive and "connected" to my fingers. Great strings!! ... show more
Reviewed in the United States on June 20, 2019 by Sean K.
    • Great sounding strings
They have a very beautiful ring to them.
Reviewed in the United States on September 30, 2022 by Braydon
    • Great Strings
I put these on a Mitchell MD200 and it sounds amazing. They feel nice on my fingers, I love the rich, full sound they put out, and they stay in tune way better than the regular steel strings I was using. I see myself using these well into the future.
Reviewed in the United States on October 7, 2018 by Harrison Thoreau Halverson
    • Nice strings but I prefer regular slinky's
Ernie Ball makes great products, especially their strings. I purchased the Cobalt's based on a recommendation from a friend who only uses Cobalt's. The strings are very durable and stay in tune but seem too stiff to me even after stretching the strings. I did not think they lasted as long as I was hoping. I will continue with regular slinky strings instead of cobalt's. ... show more
Reviewed in the United States on November 29, 2023 by MikeG
    • Articulate
Great strings that are very articulate. They also feel good and stay in tune very well ( of course part of that is the guitar).
Reviewed in the United States on June 11, 2019 by Russell Dehart
    • Beautiful
My perfered strings.
Reviewed in the United States on July 25, 2022 by Timothy Winget
    • The difference is clarity.
Suprising that there are any bad reviews on these strings. Unbelievable the difference a string can make. I usually use Slinky 0.10 these make a really nice sustaining ring to your guitar, bright and strong. Each string stands out. Reminds me of the guitar sound of Tom Petty. I will use these strings from now on. ... show more
Reviewed in the United States on April 9, 2020 by Terri Schneider

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