6' Frosted Linear Air Deflector will help deflect unwanted, hard blowing air from strip-line/long vents. Easy to install. No tools needed. All parts included. 100% acrylic. 6' Frosted Linear Air Redirect For Long Vent is made for a 70-1/4" long section and but can be shortened using a hack saw with a fine tip blade or a table saw. NOTE: Building Engineers, this item redirects airflow and does not inhibit or restrict the flow from HVAC diffusers.