Zipperstop Wholesale Ykk&reg; Zipper 5" Zipper YKK #3 Skirt & Dress ~ Black and White (12 Zippers / Pack) Zipperstop Wholesale Ykk Zipper 5" Zipper YKK #3 Skirt & Dress ~ Black and White (12 Zippers / Pack) 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.