Three-Pack YKK 13in x 1.5in #10 Vislon Open-End Zippers - Black - UV Treated - Use for sail covers, canvas enclosures, jib luff sleeves, jackets, and much more! 13" x 1.5" Black Vislon Zipper - 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