"Heavy-duty, folding 6"" truss frames and legs accommodate virtually any size.Welded 1"" aluminum tubing forms a sturdy yet lightweight 6"" x 1"" truss member for frame and legs.Frames bolt together with ""speedy cranks"" to allow easy ""set up"" and ""tear down"" without tools.All components fit into durable carrying cases for convenient transport and storage.Front and rear projection screen surfaces can be interchanged at any time.Screen can be adjusted up or down in 6"" increments.Includes rugged polyethylene carrying cases."