Designed for retrofit and new construction, Evolution Series 4" Poke Thru devices provide convenient access to power, communications, and audio/video services recessed below floor level -providing maximum device protection. Two gangs of capacity allow you to configure services for the needs of your space. Evolution Series 4" Poke-Thru devices are the perfect fit for kiosks, training rooms, classrooms, health care facilities or commercial buildings with open-space architecture.