Designed to blend in and work with almost any environment, our line of nine ALU adjustable columns range in lengths from 6-9in. up to 10-12ft, and many lengths in between. Whether it's for an office or mounted from a tall cathedral ceiling, the adjustable column supports up to 900 lb, making it ideal for exhibit, retail or digital signage applications. The new slot design makes for easy incremental height adjustments to find the perfect position and then securely locking it into place. The ALU column's cylinder shape conveniently offers ample internal space for cable management of multiple cords, ultimately giving a clean look to any installation. Peerless-AV ALU006009-AB Mounting Extension for Digital Signage Appliance is one of many Audiovisual Ceiling & Wall Mounts available through Office Depot. Made by Peerless-AV.