ZipperStop Wholesale Authorized Distributor YKK&reg; 18" Jacket Zipper YKK #5 Aluminum Metal ~ Medium Weight ~ Separating ~ Color 820 Atom Red (1 Zipper) ZipperStop Wholesale Authorized Distributor YKK 18" Jacket Zipper YKK #5 Aluminum Metal ~ Medium Weight YKK Zipper Separating ~ Color 820 Atom Red (1 Zipper). YKK aluminum zippers are made from the highest quality metal Aluminum Teeth. Color may vary on your monitor