The ZipWall Dust Barrier System is a quick easy way to set up temporary dust barriers while doing construction in homes offices or anywhere else where the work site needs to be isolated from the rest of the room. The ZipWall system uses extendable spring-loaded aluminum poles that hold plastic sheeting in place while you work. Depending on the environment you’re working in you may want to create a sealable doorway in the plastic barrier rather than just cutting it into two flaps. This is where the ZipWall Heavy-Duty Adhesive Zipper comes in. Once you cut a plastic dust barrier in to flaps you can attach this zipper to both sides to create a sealable doorway. The zipper will function in temperatures below 55 degrees Fahrenheit and the 3” wide cloth construction provides durability over regular use. This two-pack also comes with a special ZipperKnife that cuts a wide enough opening in the sheeting that the plastic won’t get caught in the zipper’s teeth.