Zipperstop Wholesale YKK&reg; 18" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 559 Purple(1 Zipper/ Pack) Zipperstop Wholesale YKK 18" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - 559 Purple (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.