Three-Pack YKK 20 in. x 1.25 in. #5VS Vislon Zippers With Double Sliders - Black - UV Treated - Use for sail covers, canvas enclosures, jib luff sleeves, jackets, and much more! 20"x1.25" Black Vislon #5VS Zipper With Double Sliders- Pack of 3 UV Treated - Great for a Marine Environment Delrin Zipper Chain Delrin plastic teeth molded to the fabric tape edges Made in the USA