I wanted a way to display/store my RC cars while saving space on my shelf, so I designed this. It slides into the holes on the shelf and lets you hang your RC cars off the side. It works with my 1/10th Rustler, 1/16th E Revo, and 1/18th Dromida truck. It was initially designed just for my Dromida with the plan to make hooks for each car, but it worked for all three of them.