Durable Material: The dust protector is crafted with wide, durable zipper tape and sturdy teeth, these zippers offer a smooth glide every time. Size: Each pack includes 4 red, self-adhesive zippers that are 7 ft in length and 3 inches in width. Versatile Use: Designed for securing plastic dust sheds, these heavy-duty zippers are ideal for both residential and commercial applications. Simple Installation: The set comes with a specially designed plastic sheeting cutter that prevents jams and allows for double cuts. Complete Package: Alongside 4 heavy-duty zippers, this pack also includes 1 plastic sheeting cutter and necessary accessories. QWORK