12" Zipper YKK #3 Skirt & Dress ~ 6 Black and 6 White (12 Zippers / Pack) ZipperStop Wholesale Authorized Distributor YKK Zipper- Made in USA 25 Assorted 12 6 Zippers black #580 ~ 6 Zippers white #501 Strong yet lightweight zipper for slacks, skirts and dresses. These are nylon zippers with plastic teeth and a metal slider.