Zipperstop Wholesale YKK&reg; SALE 16" Zipper YKK Color 501 White #3 Skirt & Dress (25 Zippers / Pack) Zipperstop Wholesale YKK 25 zippers YKK Color 501 White 16" YKK #3 Skirt & Dress Strong yet lightweight zipper for slacks, skirts and dresses. These are nylon zippers with plastic teeth and a metal slider. Overall length is 17.5" (44 cm), actual zipper part measures 16" (40 cm)