Heavy duty multi-adjustable articulating arm dual monitor desk mount supports up to two 14-inch to 30-inch monitors weighing up to 17.6lbs each Premium quality durable dual arm desktop mount provides smooth, precise and effortless viewing angle adjustments (tilt, swivel, pan, rotation, height) for perfect ergonomic position Supports monitors from 14" to 30" screen size (measured diagonally) and weighing up to 17.6 lbs (8 kg) Compatible with VESA mounting patterns 75x75, 100x100 Quick release VESA mount for easy monitor installation and removal Height adjustment knob easily controls monitor arm height adjustment range from 9.6 to 17.7 inches Sturdy mounting pole accomodates up to 4 mounting arms. Mounting arms sold separately. Features both C-Clamp and Grommet style desk mounting options