A Blind Zipper!
It's already in the name. This zipper is not visible because it has been hidden in the seam. This zipper is often used in evening dresses and wedding gowns. To process a blind zipper you need a special blind zipper foot. This can also be ordered from at our store.
The zippers are available for purchase in the following lengths: 15CM, 20CM, 22CM, 25CM, 40CM en 60CM.