This is my All Terrain Friendly Solar Panel Wheel. Triangles are the are the strongest shape, and so I have different variations of them lining the wheel. I also have solar panels attached so the rover can charge easily. Lastly, I have a vacuum/ motion sensor sticking out of the front of the rover, it will sense if there is something that the rover cannot take on, and either make it go another way to go around it, or if it is brush or dust that may stop the wheels from working properly, it vacuums it.