Zipperstop Wholesale YKK YKK #5 Nylon Coil Separating Zippers - Black 14" (pack of 1 zippers) YKK's perfect zipper for light weight outerwear jackets. The slider runs on two coils on each side; the "teeth" are the coils. These zippers are thoroughly tested for strength and durability. Color ma vary on your monitor. Buy as many as you need