Quickly creates an entry in a plastic dust barrier wherever needed. Durable self-adhesive zippers attach to plastic sheeting and (2) zippers can create a hands-free door. Heavy-duty zipper withstands high traffic and measures 7' L x 3" W. Includes (2) heavy-duty zippers, (2) flap hooks and (1) ZipperKnife™ sheeting cutter. Flap hooks hold the entryway open for easy access and ZipperKnife double-cuts the plastic to prevent jams.