Zipperstop Wholesale YKK&reg; 12" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 580 Black (1 Zipper / Pack) Zipperstop Wholesale YKK 12" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 580 Black (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.