Estes super stratosphere balsa rubber band glider estes a es3434 the super stratosphere is the biggest rubber band powered glider in the estes range it is easy to build and even easier to fly assembly takes just minutes with no glue required simply turn the propeller until the rubber band is taut let go and watch the super stratosphere soar through the air the attached wheels help to provide a safe landing so you can launch your glider into flight time after time estes a es3434 super str