Monitor Desk Mount For Up To A 40" Display And 17.6Lb; Adjustable Steel Arm - Interchangeable C-Clamp/Grommet Mounting For Desks Up To 2-Inch Thick; Top-Screw Desk Clamp For Easy Installation - Includes Tools For Arm Tension Adjustment; Quick-Release Vesa Plate - Mechanical Spring Arm W/ Toolless Adjustments Of +/-180Deg Swivel +/-90Deg Tilt +/-90Deg Screen Rotation - Max Spring Arm 24.4" Height; 23.1" Max Extension; Adjustable Height Along The 11.1" Pole - Cable Management Channel Under Arm