30" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - Black (3 Zippers / Pack) 30" Vislon Zipper ~ YKK #5 Molded Plastic ~ Separating - Black (3 Zippers / Pack) Made from the finest quality plastic to ensure extra strength & reliability. Very popular for active wear and outerwear. Great for ski jackets.