ZipperStop Wholesale Authorized Distributor YKK&reg; 27" Vislon Zipper ~ YKK #5 Molded Plastic Sport Zipper ~ Separating - 578 Medium Grey (1 Zipper / Pack) ZipperStop Wholesale Authorized Distributor YKK 27" Vislon Zipper ~ YKK #5 Molded Plastic Sport Zipper ~ Separating - 578 Medium Grey (1 Zipper / Pack) Made from the finest quality plastic to ensure extra strength & reliability. Very popular for active wear and outerwear. Great for ski jackets.