ZipperStop Wholesale Authorized Distributor YKK&reg; YKK Conceal ~ Invisible Zipper 10" Natural (572) ~ Pack of 12 Zippers ZipperStop Wholesale Authorized Distributor YKK YKK Conceal ~ Invisible Zipper 10" Natural (572) ~ Pack of 12 Zippers The Nylon Coil Teeth are hidden on the reverse side of the tape Teardrop Slider craft & sewing supply