Specifications: Product Weight: 12.1lbs/5.5kgCompatibility: Fits most 15"-32" monitors with Universal Standard VESA Plate 75x75 or 100x100, and most laptops between 12"-17"Maximum Bearing Weight: Each arm holds up to 17.6lbs/8kg loadInstallation: Grommet Mounting (max thickness 2.36"/60mm) or/and C-Clamp Mounting (max thickness 3.35"/85mm*) *The C-Clamp comes with 2.36"/60mm desk thickness support in the box but can be installed upside down to support up to 3.35"/85mm desk thickness. (Please refer to the User Manual for installation) Extensive Application The monitor arms hold one 15"-32" monitor and one 12"-17" laptop OR can be used for two 15"-32" monitors. Simply add/remove the laptop tray (included in the box) to switch between two different settings. Each arm can hold up to 17.6lb/8kg laptop or monitor Optimize Your Work Environment with Ergonomic Solution This monitor stand is designed with removable arms with built-in gas spring, which allows great flexibility in tension and angle adjustment of your monitors and laptop. The adjustable arms can Tilt +90° to -85°Swivel 180°Rotation 360° as well as a complete adjustment over display heights. Easy switching from landscape monitor setting to portrait position. Having the monitors at the optimal height will reduce neck and back pain and increase productivity. Gas Spring Arm Tension Adjustment This mount utilizes a gas spring system. The gas spring arm works with weights. Install your laptop/monitor BEFORE making a tension adjustment. To make a tension adjustment, press down the arm to a horizontal position and using a 5mm hex key, turn clockwise to reduce tension for lighter monitors(if monitor goes up), and counter-clockwise to increase tension for heavier monitors(if monitor goes down) until your monitor stays in the desired position. VESA Plate Angle Adjustment For packaging purposes the VESA plate comes angled in the box. To make the Fast-Insert holes face upwards, please use both hands to adjust the VESA plate AFTER the arm is installed on the pole and BEFORE installing the monitor. The rotation will be smoother once the monitor is installed. Please note that the VESA plate has optimal 360° Rotation capability for 15"-32" monitors and there is no adjustment for it. Cable and Hex Key Management Clips The Cable Management Clips can be attached on the pole to keep your cables safely stored out of your way. Also, the spring arms have built-in cable management slots. Making your workspace look clean and sleek. Base Clamp and Grommet Size information: