Zipperstop Wholesale YKK&reg; 16" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 580 Black (1 Zippers / Pack) Zipperstop Wholesale YKK 16" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 580 Black (1 Zippers / Pack) Made from the finest quality plastic to ensure extra strength & reliability. Very popular for active wear and outerwear. Great for ski jackets.