Kensington Gas Monitor Arm with SmartFit System (K60097US) SmartFit(TM) system lets you quickly and easily set your optimal viewing angle, swivels away to save desk space. Gas assisted height adjustment allows you to precisely follow SmartFit comfort color guidelines with fingertip ease. Resets easily for multiple users. Tilts to eliminate glare and rotates for portrait or landscape viewing Installs without tools to back desk edges up to 2.5" thick.