These potentiometers are very solid and a clear step up from what you usually find in lower-end import guitars. The taper feels smooth and the build quality is excellent.That said, two of the four I received showed signs of previous use, with solder residue and clipped wire on the lugs. It seems they may have been returned and repackaged without inspection.While I would have preferred all four to be brand new, I was on a deadline for a repair and was able to clean them up and use them. The other two arrived in perfect condition.Still a great product, just hoping Amazon improves their return checks.