Upgradable to carry additional display: Yes, Material: Steel, Color Options: Black, Desk fixing options: Bolt through and desk clamp, Spring-assisted height adjustability: No, Rotation around pole: No, Tilt adjustment: 20° in any direction, Pan adjustment: 20° in any direction. The Atdec Donut Poles offer superior display versatility. They come in three different lengths each including one QuickShift™ Donut to guarantee a customized display installation.