Used widely, from guitars/basses to the jacks of amplifiers and effectors. I'm not sure what it is, so if anyone can tell from the photos, please let me know. #cottonchan's product list ☜✨ ☘️Instant purchase welcome, silent purchase at midnight OK ◎ ☘️One-of-a-kind, first come, first served ☘️Bulk purchases welcome, feel free to comment ☘️Free shipping! ・Please understand that items are stored at home and will be shipped in simple packaging. (⁎ᵕᴗᵕ⁎) ・Please check the actual photos for the condition of the product♪ ※To keep prices low, we may remove the item from its box for shipping due to shipping costs. ◾️Unused, but opened for photography. (33-24)