Made of solid steel and able to support up to 900 lb, the black 3-5′ Adjustable Extension Column from Peerless-AV allows 3 to 5′ of height adjustment in 1″ increments, adding flexibility and functionality to your projector or flat panel mount. The standard 1.5″ diameter NPT pipe is threaded at both ends and provides interior cable management for a clean look in signage, trade show, retail, or home applications.