The COSTUMAKERS Denim Closed End Zipper 15cm (6") - Rail - 1710 is tailored for denim and heavy-weight fabrics, combining #3 brass metal teeth with light-weight tape for reliable performance. Ideal for jeans, denim skirts, and tailored pants, its closed-end design ensures secure fastening. To install, reinforce the zipper area with interfacing or stay tape, baste for alignment, and stitch using a zipper foot. Finish with topstitching to highlight seam lines and integrate seamlessly into denim aesthetics. After sewing, operate the zipper through its full range to confirm smooth action. Press over a protective cloth to set stitches without heating the metal teeth directly. Offering a range of colours, this zipper complements both classic and modern denim washes. Trim tape edges, grade seam allowances, and press incrementally for a polished look.