Safely cover a doorway with zippers already installed in under a minute. Multiple doors can save hours of time. Attaches to door frames with double-sided ZipWall Tape - firmly holds plastic on one side, gentle on surfaces on the other. Allows repositioning for up to an hour. The standard ZipDoor Kit seals doorways up to 4 ft. x 8 ft. . Quickly cover a doorway to provide an airtight seal with zippers for easy entry and exit. Use to follow lead-safe work practices required by the EPA for covering doors.