DUAL ARM MONITOR MOUNT: Fits 2 screens up to 32 inches, with a maximum support weight of 17.6 pounds each, using the 75x75mm or 100x100mm VESA square bolt hole pattern found on the back of the monitors. Comes with interchangeable C-clamp or grommet base mount for use on desktops. FEATURES: Dual monitor arm has counterbalanced, mechanical spring arms which are easily height adjusted and comes with 2 x USB 3.0 ports and (1) USB extension cable. It has integrated cable management and is made out of heavy duty steel and aluminum alloy. FULLY ADJUSTABLE: Monitor stand with USB ports can tilt +/- 90 degrees, swivel left/right 360 degrees, and raise/lower a total of 11.5 inches. Turn hex bolt on top of mechanical springs to set the counterbalance and hold screens in place. EASY INSTALLATION: Dual monitor mount comes with all mounting hardware, tools, and instructions necessary for assembly. Quick-detachable VESA plate comes off with a push of a button, mounts to back of monitors, then