Detail 01
Gauges: .040, .060, .070, .095
This is the Extra Slinky gauge set.

Independent shopping perspective
Ernie Ball P02815 Extra Slinky Flatwound bass strings pair a SuperBright cobalt ribbon wrap and cobalt underwrap with an optimized hex core. The .040, .060, .070, and .095 gauges are presented with a fast, slinky feel, while the design combines the mellow character associated with flatwounds and the clarity, punch, and sustain associated with roundwounds. Cobalt alloy is also used for higher output and clarity, with rich overtones across the set.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
This is the Extra Slinky gauge set.
Detail 02
The construction is intended to support flexibility, vibration, tonal richness, clarity, and output.
Product questions
Straight answers to the questions shoppers most often ask about this product.
The set is gauged .040, .060, .070, and .095.
It combines smooth, mellow flatwound character with the clarity, punch, and sustain associated with roundwounds.
The strings are described as having a fast, slinky feel.