The Ernie Ball Cobalt Regular Slinky (P02721) is a 6-string electric guitar string set built around a tin-plated high-carbon steel hex core wire wrapped with a proprietary iron-cobalt alloy. That cobalt wrap is the key difference here — it creates a stronger magnetic relationship between the strings and your pickups compared to standard nickel or steel alloys, which translates to more output and a wider dynamic range without any additional gear.
At .010–.046, the Regular Slinky gauge sits in familiar territory — light enough for comfortable bending and articulation, with enough tension to stay balanced across the full range of the neck. The cobalt winding also gives the wound strings a notably flexible feel, making bends and vibrato feel smooth and responsive.
Construction-wise, the wound strings use Ernie Ball's cobalt alloy wrapped around a tin-plated high-carbon steel hex core. The hex core helps the wrap wire grip securely, contributing to intonation stability and consistent feel across the set. These strings are made in California, USA.
Product Features:
- For 6-string electric guitar
- Gauge: .010, .013, .017, .026, .036, .046
- Iron-cobalt alloy wrap wire over tin-plated high-carbon steel hex core
- Stronger magnetic response between strings and pickups than standard alloys
- Wound for added flexibility — smooth feel for bending and vibrato
- Made in California, USA
Brand: Ernie Ball
Model: Cobalt Regular Slinky Electric Guitar Strings
SKU: P02721
Condition: New
Since 1872, C.A. House Music has been helping musicians across the Ohio Valley find the right gear -- with real advice from a team that actually plays. We're your authorized dealer of all the big names in guitars, keyboards, band instruments, drums, pro audio, and more. With four family-owned and operated locations in Ohio and West Virginia (plus a full online store), you don't have to go far for instruments, lessons, rentals, and repairs. No matter your musical needs, our team of musicians wants to help you Play Music for Life.
