ZipperStop Wholesale Authorized Distributor YKK&reg; #3 Coil Invisible Zipper Closed Bottom 3pcs (23", Black) ZipperStop Wholesale Authorized Distributor YKK #3 INVISIBLE zippers Zippers are YKK brand #3 (3mm teeth) nylon coil INVISIBLE closed Bottom zippers. The Nylon Coil Teeth are hidden on the reverse side of the tape Strong pull YKK Teardrop Slider Color may vary on your monitor