Using the Surface Shield ZC02 Self Adhesive Zipper you can create instant access to plastic enclosures and tarps in a matter of minutes. All you have to do is peel off the backing paper and apply the zipper to the desired spot where you want to create an opening. Then cut through the entire 7' length of the zipper opening using a utility knife and you are done. The ZC02 Zippers are 2-3/4" wide providing more surface contact to hold up in situations where you are going in and out of the containment area multiple times during the work day. One zipper will create a slot opening. If you require a wider opening use both zippers and to create a door of whatever width you desire.