**If you don't already have solid experience setting in invisible zippers, and you can use a different type of zipper, do! Invisible separating zippers are finicky to set in! Just like with any kind of multi-tasking in life, it's not as effective as when focused on one task. These zippers are also not as easy to use as if they only were separating and not invisible, or only were invisible but not separating. That said, some people love these zippers and use them well! Here are instructions for how they do:
1. Completely separate the zipper so that you have two unconnected parts.
On the Size #4 separating invisible zippers, the slider and box stay attached to the Right Side of the zipper, whereas on the Size #5 separating invisible zippers, the slider and box stay attached to the Left Side of the zipper.
Sew the side without the slider and box first, staying about 1mm width away from the teeth, especially near the bottom. (If you're too close to the teeth at the bottom, it will be very hard to open the zipper.)
2. On the other side of the zipper, move the slider and box upward to around the middle of the zipper. Sew about half of the zipper, and then lift the sewing foot up and move the slider and box back down into the part of the zipper already sewn. Continue stitching all the way to the end.
3. Put the pin into the slider and box and join the zipper and check your work. It is done!
