ZipperStop Wholesale Authorized Distributor YKK&reg; 6" Zipper YKK Color 501 White #3 Skirt & Dress (25 Zippers / Pack) ZipperStop Wholesale Authorized Distributor YKK 25 zippers YKK Color 501 White 6" 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 7.5", actual zipper part measures 6".