---
product_id: 49458818
title: "Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge"
brand: "ernie ball"
price: "$36.64"
currency: USD
in_stock: true
category: "Ernie Ball"
url: https://www.desertcart.us/products/49458818-ernie-ball-super-slinky-cobalt-electric-guitar-strings-9-42
store_origin: US
region: United States of America
---

# Cobalt alloy for max magnetic output 9-42 gauge Super Slinky precision Made in USA quality assurance Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge

**Brand:** ernie ball
**Price:** $36.64
**Availability:** ✅ In Stock

## Summary

> 🎶 Feel the power, play the future with Ernie Ball Super Slinky Cobalt!

## Quick Answers

- **What is this?** Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge by ernie ball
- **How much does it cost?** $36.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/49458818-ernie-ball-super-slinky-cobalt-electric-guitar-strings-9-42)

## Best For

- ernie ball enthusiasts

## Why This Product

- Trusted ernie ball brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Nickel-Free Comfort:** Ideal for sensitive skin—no nickel, no irritation, just pure playability.
- • **Unmatched Magnetic Power:** Cobalt alloy boosts pickup response for louder, richer tones.
- • **Pure, Clear Sound Clarity:** Experience crisp highs and strong lows with extended dynamic range.
- • **Trusted Legacy, Modern Edge:** Decades of Slinky innovation combined with cutting-edge cobalt tech.
- • **Ultra-Light Gauge, Ultra-Fast Play:** Super Slinky 9-42 gauge strings deliver effortless bends and lightning-fast riffs.

## Overview

Ernie Ball Super Slinky Cobalt Electric Guitar Strings (9-42 gauge) feature a cobalt alloy wrap over a high-carbon steel core, delivering stronger magnetic output, enhanced tonal clarity, and extended dynamic range. These nickel-free, uncoated strings offer ultra-light gauge playability favored by professionals and are proudly made in the USA, making them a top choice for electric guitarists seeking superior sound and comfort.

## Description

Buy Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge. Free delivery and returns on eligible orders.

## Features

- Cobalt produces a stronger magnetic relationship between pickups and strings, resulting in increased output.
- Cobalt electric guitar strings provide an extended dynamic range, incredible harmonic response, strong low end, and crisp, clear highs.
- Wound strings consist of Ernie Ball’s Cobalt alloy wrapped around a tin-plated high-carbon steel core wire.
- One of the original Slinky gauges, Super Slinky has remained one of the most popular electric guitar strings for decades.
- Made in the USA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0078YFA1A |
| Best Sellers Rank | 339 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 32 in Guitar Strings |
| Body Material Type | Cobalt |
| Brand | Ernie Ball |
| Brand Name | Ernie Ball |
| Coating Description | uncoated |
| Coating description | uncoated |
| Colour | Super (9-42) |
| Country of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 2,203 Reviews |
| Finish Type | Uncoated |
| Global Trade Identification Number | 00749699127239 |
| Included Components | Guitar Strings |
| Instrument | Electric Guitar |
| Item Type Name | Electric Strings |
| Item Weight | 0.06 Pounds |
| Manufacturer | Ernie Ball |
| Manufacturer Part Number | 2723 |
| Material Type | Cobalt Alloy |
| Model Name | Super Slinky |
| Model Number | P02723 |
| Number of Items | 1 |
| Product Warranty | None. |
| Recommended Uses For Product | Electric guitar |
| Set Name | Super Slinky |
| Sound Profile | Balanced |
| String Gauge | .009, .011, .016, .024w, .032, .042 |
| String Material Type | Cobalt Alloy |
| String gauge | .009, .011, .016, .024w, .032, .042 |
| String material type | Cobalt Alloy |
| UPC | 749699127239 |
| Unit Count | 1 count |

## Product Details

- **Brand:** Ernie Ball
- **Colour:** Super (9-42)
- **Instrument:** Electric Guitar
- **String gauge:** .009, .011, .016, .024w, .032, .042
- **String material type:** Cobalt Alloy

## Images

![Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge - Image 1](https://m.media-amazon.com/images/I/81pePX+cJ1L.jpg)
![Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge - Image 2](https://m.media-amazon.com/images/I/71Ltn9aNgfL.jpg)
![Ernie Ball Super Slinky Cobalt Electric Guitar Strings - 9-42 Gauge - Image 3](https://m.media-amazon.com/images/I/31DVzNTAp7L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: What is the difference between the Power and Super strings?**
A: Power Slinky are 2 standard gauges thicker than Super Slinky. So the only difference is the thickness of the strings.

**Q: Can these be used in drop b on a les paul style guitar**
A: I've used them drop c on my les paul and not too bad

**Q: Will these work on an acoustic guitar**
A: I always use Ernie Ball .009 -.042 on my acoustic as I like light strings and they keep a good tone for weeks.

**Q: I understand only the 4th, 5th and 6th are coated. The plain strings are the same as a normal SS pack. Is that right?**
A: Hi, These aren't coated strings. They are made of cobalt which reacts with the pickups a bit more to increase output. The 4th, 5th and 6th strings are made with cobalt but the plains are standard ernie ball plains. Thanks EmileStrings Direct

## Frequently Bought Together

- Ernie Ball Super Slinky Cobalt Electric Guitar Strings, 9-42 Gauge (P02723)
- Ernie Ball Super Slinky Classic Pure Nickel Electric Guitar Strings, 9-42 Gauge (P02253)
- D'Addario Accessories Pro-Winder Guitar String Winder, Cutter, Bridge Pin Puller - All in One Guitar Tool - Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/49458818-ernie-ball-super-slinky-cobalt-electric-guitar-strings-9-42](https://www.desertcart.us/products/49458818-ernie-ball-super-slinky-cobalt-electric-guitar-strings-9-42)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-07*