The zip slider of my jacket was broken. I printed one from Thingiverse but it didn't work, because of my jacket has a different kind of zipper. That's why I created a new one. I also added a handle to the slider. This zip slider should also works for other spiral zips with a similar size (size 5). I print it with PLA filament and rafts. It should be easy to cut the supports of the handle away.