#3 Nylon Coil Zipper is perfect for apparel, pillows, duvets, slipcover backs, chair pads and inside pockets on purses or bags.
It is small & flexible but very strong.
This 3mm zipper is the size you find in the store as a dress zipper.
It is 3mm across the closed coil & 1-1/16" total width.
Buying this standard coil zipper by the yard or as continuous coil/chain means that you can cut off exactly what you need for your project.
No, you cannot make this into a separating or jacket zipper.