---
product_id: 5447555
title: "Ernie Ball Power Slinky Cobalt Bass Guitar Strings, 55-110 Gauge (P02731)"
brand: "ernie ball"
price: "¥12875"
currency: JPY
in_stock: true
category: "Ernie Ball"
url: https://www.desertcart.jp/products/5447555-ernie-ball-power-slinky-cobalt-bass-guitar-strings-55-110
store_origin: JP
region: Japan
---

# Cobalt Alloy Enhanced Magnetism Element Shield Ernie Ball Power Slinky Cobalt Bass Guitar Strings, 55-110 Gauge (P02731)

**Brand:** ernie ball
**Price:** ¥12875
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Sound with Every Pluck!

## Quick Answers

- **What is this?** Ernie Ball Power Slinky Cobalt Bass Guitar Strings, 55-110 Gauge (P02731) by ernie ball
- **How much does it cost?** ¥12875 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/5447555-ernie-ball-power-slinky-cobalt-bass-guitar-strings-55-110)

## 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

- • **Longevity Guaranteed:** Thanks to Element Shield Packaging, your strings stay fresh and vibrant for longer.
- • **Crafted in California:** Proudly made in the USA with premium materials for the discerning musician.
- • **Silky Smooth Playability:** Enjoy effortless string bending and fluid play, making every performance a breeze.
- • **Unmatched Magnetic Connection:** Experience a stronger bond between pickups and strings for unparalleled sound.
- • **Revolutionary Low-End Performance:** Transform your bass lines with deep, resonant tones that command attention.

## Overview

Ernie Ball Power Slinky Cobalt Bass Guitar Strings (55-110 Gauge) feature a unique cobalt alloy that enhances magnetic interaction with pickups, delivering superior low-end performance. Designed for smooth playability and longevity, these strings are packaged with Element Shield technology to ensure they remain fresh and ready to perform. Proudly made in California, they are the perfect choice for bassists seeking quality and innovation.

## Description

Engineered to maximize output and clarity, Ernie Ball Cobalt Slinky Bass Strings are one of the latest innovations 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 with perfect intonation. Gauges .055, .075, .090, .110. Part number 2731.

## Features

- Cobalt produces a stronger magnetic relationship between pickups and strings than any other alloy previously available
- Patented technology brings a new definition to “low end” capabilities
- Cobalt Slinkys are also soft and silky to the touch, making string bending a breeze
- Element Shield Packaging prolongs string life and keeps strings as fresh as the day they were made
- Made in California, USA with the freshest and finest materials

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007AGRV3G |
| Best Sellers Rank | #3,517 in Musical Instruments ( See Top 100 in Musical Instruments ) #16 in Bass Guitar Strings |
| Body Material Type | Cobalt |
| Brand | Ernie Ball |
| Brand Name | Ernie Ball |
| Color | Power (55-110) |
| Customer Reviews | 4.5 out of 5 stars 159 Reviews |
| Finish Type | Polished |
| Global Trade Identification Number | 00749699127314 |
| Included Components | Strings only |
| Instrument | Bass Guitar |
| Item Type Name | Bass Guitar Strings |
| Item Weight | 4.16 ounces |
| Manufacturer | Ernie Ball Music Man |
| Manufacturer Part Number | P02731 |
| Material Type | Cobalt |
| Model Name | Cobalt Power Slinky Bass |
| Model Number | P02731 |
| Number of Items | 1 |
| Recommended Uses For Product | Bass Guitar |
| Set Name | Power Slinky |
| String Gauge | .055 |
| String Material Type | Cobalt |
| UPC | 749699127314 |
| Unit Count | 1 Count |
| Warranty Description | None. |

## Product Details

- **Brand:** Ernie Ball
- **String Gauge:** .055
- **Color:** Power (55-110)
- **Instrument:** Bass Guitar
- **String Material Type:** Cobalt

## Images

![Ernie Ball Power Slinky Cobalt Bass Guitar Strings, 55-110 Gauge (P02731) - Image 1](https://m.media-amazon.com/images/I/817hzDx-BgL.jpg)

## Available Options

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

## Frequently Bought Together

- Ernie Ball Power Slinky Cobalt Bass Guitar Strings, 55-110 Gauge (P02731)
- Ernie Ball Power Slinky Nickel Wound Bass Guitar Strings, 55-110 Gauge (P02831)
- Ernie Ball Power Slinky Flatwound Bass Guitar Strings, 55-110 Gauge (P02811)

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**Shop now:** [https://www.desertcart.jp/products/5447555-ernie-ball-power-slinky-cobalt-bass-guitar-strings-55-110](https://www.desertcart.jp/products/5447555-ernie-ball-power-slinky-cobalt-bass-guitar-strings-55-110)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-11*