YKK #3 Skirt & Dress Zippers 12 Inch Closed Bottom White (12 Zippers / Pack) YKK Color 501 White 12" 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 13 1/2" (34 cm), actual zipper part measures 12" (30 cm)