Three-Pack YKK 25" x 1.5" #10 Vislon Open-End Zippers - Black - UV Treated - Use for sail covers, canvas enclosures, jib luff sleeves, jackets, and much more! - UV Treated - Use for sail covers, canvas enclosures, jib luff sleeves, jackets, and much more! Three-Pack YKK 25" x 1.5" #10 Vislon Open-End Zippers - Black - UV Treated - Use for sail covers, canvas enclosures, jib luff sleeves, jackets, and much more! UV Treated - Great for a Marine Environment Delrin Zipper Chain Delrin plastic teeth molded to the fabric tape edges Made in the USA