ZipWall 20 dust barrier poles are designed for the professional contractor. Four anodized aluminum sections telescope up to 20 feet and twist to lock. Each spring-loaded pole is easy to set up without a ladder – a major safety benefit when working with high ceilings. The innovative non-skid, non-marking head locks the barrier material, allowing it to be raised with the pole, and holds it securely in place without damaging the ceiling. A tight dust barrier can be set up in just a few minutes, one pole at a time, without ladders, tape, or damage.