The COSTUMAKERS General Purpose Closed End Zipper, Style 1700 in Buttercup combines elegance and reliable function for premium garment construction. The #2.5 nylon coil is intricately wound and securely locked into a color-matched polyester tape, providing a slim profile without sacrificing tensile strength. This 18 cm (7 in) closed-end closure features a nickel-free, corrosion-resistant slider that glides smoothly through repeated cycles of wear, laundering, and pressing, ensuring snag-free operation. All coils undergo solution-dyeing to produce uniform, fade-resistant coloration across production runs. Components exceed CPSIA lead-compliance standards and are tensile-tested above 20 newtons for durability in both children’s and adult apparel. Installation is seamless with any standard zipper foot, allowing the tape to lie flat within seam allowances for a professional silhouette that resists distortion under steam or mechanical stress. Each buttercup zipper arrives individually sleeved to protect against moisture and abrasion during transit and storage, making it perfect for formalwear, bridal applications, and everyday designs demanding a stylish yet dependable closure.