Detail 01
Female to female
Both ends accept a plug. It joins two cables; it does not plug into a jack.

Independent shopping perspective
A barrel coupler that joins two 1/4" mono cables end to end. For extending a run or rescuing a cable that's too short.

Strong match
Consider the trade-offs
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
Both ends accept a plug. It joins two cables; it does not plug into a jack.
Detail 02
Two conductors, tip and sleeve. Passes one unbalanced signal — guitar, pedal, or instrument-level line.
Detail 03
Standard plating. Holds up to repeated insertion, but can dull and get slightly noisy over years of gig use.
Detail 04
The full-size guitar jack, not the 1/8" headphone size. No adapting to smaller plugs here.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Not properly. It's wired mono, so a TRS plug's ring contact gets tied to sleeve. Stereo or balanced signals will not pass through correctly.
Only for 1/4" headphone plugs carrying a mono signal. Stereo headphones will lose one channel or sum incorrectly through a mono adapter.
Each connection adds a small amount of resistance and one more spot for crackle. On a short run you won't hear it. On long runs, use a single cable.
It will physically fit, but a small barrel adapter is not built for amp-to-cab power levels. Use a proper speaker cable of the right length instead.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.