Piano Parts, Vertical Piano, Copper Springs,Jack Spring Maintenance Piano Accessories, One Package Of 90 Piano Linkage Springs

While these are return springs designed for use on a piano, I am restoring a vintage electric guitar and need springs to fit under the pick ups to allow adjusting up and down.Finding the right size springs seemed all but impossible. Just by chance I placed the order for these. They were a perfect fit!!Comes in an unlabeled box with the springs inside in a ziplock plastic bag. They say that there are 90 in there but there is no way that i could begin to count them all. Springs get all tangled up when stored like this in a single bag.They are easily compressed and return to their normal state quickly. The ends are wound tightly with the middle section a loose wind. These are made of copper. Sort of the size of a writing pen spring.I am very pleased with them and they will now allow me to complete the restoration.

Higher quality than expected, measurements are spot-on.As another reviewer notes, the springs do need to be separated from one another.I found that gentle counter-clockwise twisting easily separates multiple springs, which show surprising uniformity once separated (see images).Lastly, I held the entire package up to a large magnet and found 0 magnetic attraction, which should be the case for copper.Very satisfied with the value and quality of these springs, looking forward to project use.