Technic liftarms #2
A taller alternative to the technic liftarm snot with the same drawbacks.
To find the different pieces needed for this technique you can search LEGO's online Pick-a-Brick for the design ID's. We link other market places directly on each individual piece page, which you can find below.
A simple but brilliant construction.
You can replace 30236 with a 2540 and two plates and achieve the same results.