Zipperstop Wholesale YKK&reg; 7" Zipper YKK #3 Skirt & Dress ~ YKK Zippers Color 820 ~ Atom Red (12 Zippers / Pack) Zipperstop Wholesale YKK 7" Zipper YKK #3 Skirt & Dress YKK Zippers Color 820 ~ Atom Red (12 Zippers / Pack) Strong yet lightweight zipper for slacks, skirts and dresses. These are nylon zippers with plastic teeth and a metal slider.