ZipWalls Spring-Loaded Dust Barrier Poles smoothly adjust up to 12 ft. high and form a tight dust barrier which can be set up in just a few minutes, one pole at a time, without ladders, tape, or damage. The poles anodized aluminum construction makes them sturdier than stainless steel, smoother to raise and to lock. These poles are built for heavy use and their size is perfect for both residential and commercial jobs.