Ernie Ball Cobalt Slinky Skinny Top Heavy Bottom Electric Guitar Strings, 10-52

Ernie Ball Cobalt Slinky electric guitar strings combine a 10-52 Skinny Top Heavy Bottom gauge with cobalt alloy wound strings. The set is intended for players seeking lighter-feeling top strings and a heavier low end, with customer feedback praising sound and tuning while noting mixed durability and feel.

At a glance

10-52 Skinny Top Heavy Bottom gauge for electric guitar.
Cobalt alloy strings with a tin-plated, high-carbon steel core, according to the listing.
Manufacturer describes the sound profile as balanced with slight emphasis on low end and highs.

Price

$25.00Save 21%

Reference price: ~~$31.50~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

The 10-52 set pairs thinner top strings with heavier lower strings, suiting players who want that gauge combination.
Customer feedback reports positive sound quality and tuning performance.

Technical specifications

12 specifications

Identity
Brand	Ernie Ball
Model	Cobalt Slinky
Instrument	Electric Guitar
Set	Cobalt Slinky Set

String construction and sound
Gauge	Skinny Top Heavy Bottom
Gauge description	Skinny Top Heavy Bottom (10-52)
String material	Cobalt
Core material	Steel
Core wire	Tin-plated, high-carbon steel core wire.
Coating	Uncoated
Sound profile	Balanced with slight emphasis on low end and highs

Dimensions and installation
Weight listed	0.06 Pounds

What to know before buying

The manufacturer describes a stronger magnetic relationship with pickups and enhanced output and clarity. These are product claims, not independently verified performance measurements.
Customer feedback is mixed on longevity, with reports ranging from long-lasting strings to breakage within two weeks. Feel is also mixed, including reports of a very rough feel.

What’s in the box

Included

Six electric guitar strings, gauges .010, .013, .017, .030, .042 and .052

Who is it for?

A good fit for

Electric guitar players looking for a 10-52 Skinny Top Heavy Bottom set.
Players who prefer cobalt strings and want the manufacturer-claimed emphasis on output, low end and clear highs.

Less suited to

Players seeking acoustic-guitar strings or a coated set.
Players who prefer a consistently smooth feel, given reports describing the strings as rough.

Ernie Ball Cobalt Slinky Skinny Top Heavy Bottom Electric Guitar Strings, 10-52 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 909 ratings

5 stars82%82%
4 stars11%11%
3 stars4%4%
2 stars1%1%
1 star2%2%

Customer feedback is largely positive about sound quality and tuning performance, including a report that the strings work well across tunings without feeling too loose. Durability and feel are less consistent: some report long life, others report breakage within two weeks, and several describe a rough feel. That makes the set's 10-52 gauge and reported sound appeal worth weighing against personal preferences for feel and string longevity.

Positive themes

Customers report good sound quality and tuning performance.

Mixed feedback

Durability feedback varies from long-lasting to breakage within two weeks.
Some customers describe the feel as very rough.

Frequently asked questions

What gauge is this set?

The listing identifies it as Skinny Top Heavy Bottom and describes the gauge as 10-52.

What is the string material?

The strings are listed as cobalt, with a tin-plated, high-carbon steel core wire.

Are these strings coated?

No. The listing specifies an uncoated finish.

What do customers report about feel and durability?

Feedback is mixed. Some customers report long life, while others report breakage within two weeks. Feel is also mixed, with some describing the strings as rough.