We custom made bulk of high quality zipper, what I think it is better than YKK too much.
1) All teeth were polished, and vacuum electroplating UV, so it won't get rust and very smoothy.
2) Double way design, you can install the slider from both sides, it is better than YKK, YKK is one way design.
3) Train type slider, train type slider has a small lock, push the D ring into the lock, then you can use leather puller.
4) Train type slider + Dring + 2 top stops + 1 bottom stop as hardware kit, save lots of time.
Here is the link for slider: http://www.leathercraftpattern.com/Leather-supplies/zipper/Zipper-slider
5) Gold and silver color to choose.
We only sell them in 1 meter for minimum unit, quatity 3 means 3 meters.
We had tried our best to take the picture as its original colors, but anyhow, there is color aberration....