ERGONOMIC FULL MOTION DUAL MONITOR MOUNT The SHOPPINGALL monitor and laptop mount, SA-GM224U+D15, merges functionality with robust design to enhance the comfort and efficiency of your workspace. It offers you the flexibility to adjust your laptop and monitor simultaneously, tailoring both the angle and height to ensure an optimal viewing experience. Pneumatic Arm Adjustment When you monitor/laptop is dropping Press down the arm to make it in horizontal position and turn counter-clockwise to increase tension until it can hold the weight of your monitor. When your monitor/laptop is too light Press down the arm to make it in horizontal position and turn clockwise to reduce tension until it can hold the weight of your monitor *Gas spring tension adjustment should be done AFTER the monitor or laptop is installed on the arm. Multiple turns may be required until the monitor stays in the desired position. Quick Release Function and Easy Assembly Detachable VESA plate offers effortless mount installation for your monitors and laptop. Integrated USB 3.0 and Audio Ports Features two USB 3.0 extension ports, and audio ports for quick access to flash drives, and convenient for charging your devices. Our Signature Laptop Tray SA-D15 The ventilation holes on the tray will keep your laptop cool and prevent it from overheating for long hours use. The safety blockers and non-slip pads on the surface of tray will keep your laptop or keyboard in place C-Clamp Base and Grommet Base Size information: Base Clamp Grommet