The Cose Nylon Invisible Zipper, 35cm long and in red, is a pre-assembled zipper with a slider included. Its teeth are hidden behind the tape after application, leaving only a discreet stitching line visible. It's the most commonly used type of zipper for dresses, skirts, and blouses in more elegant clothing, where a clean finish without the zipper being visible is desired. The red color provides a striking effect, making it a popular choice for party dresses and more vibrant styles. The longer 35cm length is ideal for dresses with a wider opening along the back. It requires a specific invisible zipper foot on the sewing machine, which allows for correct application along the hidden teeth.