Vortex Generators:  The best modification for a your Cessna aircraft; lowers stall speed, increases aileron control and more. Check out our web site (cubcrafters.com) for a video showing Cessna aircraft flying with our Vortex generators. You will want this for your aircraft. Includes everything to install the Vortex generators, (VG, adhesive, template, hardware etc) for your Cessna 120 and 140