W|ECO Low Profile Arrow Board Skids are full-size arrow boards on a frame that fits under a folding attenuator on a truck bed or trailer. The arrow board frame pivots the display panel up to the vertical position when deployed, and down to horizontal for transport. The low height of the transport position allows equipment such as an attenuator to be temporarily stowed above the arrow board. All Wanco Skid-Mounted Arrow Boards are self-powered, requiring no wiring to an external power supply. The control panel may be installed inside the truck cab or outside on the skid frame.