Upgrade your build with a COSTUMAKERS 70 cm (28 in) one-way separating zipper in black. Featuring #5 silver metal teeth on reinforced polyester tape, this medium weight closure glides smoothly, resists corrosion and repeated washing, and installs easily thanks to precision-cut tape that keeps width consistent. Ideal for sportswear & outerwear, every production run is tensile-tested and slider-fatigue inspected so your finished pieces deliver long-term reliability and a polished look. From boutique projects to full-scale manufacturing, trust COSTUMAKERS for colour accuracy, tight tolerances and season-after-season performance.