A two-pack of zipper lubricant sticks. This product not only "unsticks" zippers but protects nylon, plastic and metal zippers against salt, chlorine, rust and corrosion. Can also be used on waterproof zippers on diving gear. To use first unzip and clean the zipper with a dry brush. Then zip closed and apply generously to entire length of zipper. Slide the zipper back and forth to evenly distribute the product and wipe away excess.